NGC 7054 (21h 20.7m +39° 10')
Discovered by Stephan. There is no object at Stephan's precise offset but
there is a mag 13.9 nonstellar GSC object 1.5' ESE. On the DSS this object
appears a small extended image (probably a merged double) located 1.3' SE
of a mag 10.5 star.
NGC 7071 (21h 26.5m +47° 56')
Discovered by JH (h2119): "A very poor and small cluster of an oblong
figure. It is followed by a loosely scattered mass of stars." His
position of 21 26 32 +47 56 (2000) corresponds with a 7'-8' "loop" of stars
described by Ling. Reinmuth has "not found; =N7067?". This comment is
repeated in Carlson and RNGC. Skiff gives a position of 21 27.4 +48 02
(2000) which appears to be in error. Not in Lynga 5.
NGC 7112 (21h 42.3m +12° 29')
N7112, N7113 were discovered by Swift in July 1886 and Marth in April 1863,
respectively. Their discovery positions (precessed to 2000) and
descriptions are as follows:
N7112 21 42 20 +12 34 47
eeF, S, R, pB* with dist companion close p; v diff.
N7113 21 42 27 +12 37
vF, S, stell
The RNGC and CGCG identify these numbers with the following two galaxies:
(R)N7112 21 42 22.9 +12 29 54
U11794 = M+02-55-010 = Z427-014
(R)N7113 21 42 26.7 +12 34 09
M+02-55-009 = CGCG 427-016
MCG does not assign a NGC number to the first galaxy but identifies the
second galaxy as N7112.
Marth's position for N7113 is 3' S of M+02-55-009 but is an exact match in
RA. Swift's RA for N7112 matches M+02-55-010 although his declination
would then be 5' off and actually matches N7113. Furthermore, his
description "pB* with dist companion p" applies to N7113 as mag 8.7 SAO
107337 is located 1' preceding. This bright star also has a "distant
companion", which is a mag 13 star 53" ENE. Finally, if Swift was not
aware of Marth's discovery then he most likely recorded the brighter of the
pair which is N7113. So, based on Swift's visual observation it appears
likely that N7112 = N7113.
NGC 7157 (21h 56.9m -25° 21')
Not found by Spitaler (IC 1 notes) or Howe (IC 2 notes). Leavenworth's
position was 0.7 tmin W. Howe also notes that no bright double star is in
the vicinity. There is a 9.5 mag star 10 sec W of this galaxy (Leavenworth
states "B D* p 8 sec").
NGC 7202 (22h 06.7m -31° 12')
JH's position is 1 tsec of RA preceding N7203 and 3' S. At this position
is a mag 14.5 GSC star. ESO also identifies N7202 with this star
(uncertain ID). Not found by Harold Corwin.
NGC 7334 (22h 37.9m -37° 14')
In one observation of h3950 = N7322, JH recorded the RA exactly 1 tmin too
far E and Dreyer recorded both in NGC. JH was very suspicious of this
position but mentioned it as "not impossible" to be a different nebula. Not
identified as N7322 in the RNGC. ESO has N7322 = N7334.
NGC 7350 (22h 40.8m +12° 00')
Discovered by Marth (m492) along with N7348 and N7353 and placed at 22 41
04 +11 58 (2000). Not found by Reinmuth. Identified as a star by Carlson
and repeated in RNGC. Tentatively Identified as a double or triple star by
HC at 22 40 48.5 +12 00 24 (2000). DSS shows a close pair at this position
(the third component is much wider).
NGC 7353 (22h 42.2m +11° 53')
Discovered by Marth (m493). There is no gx near his discovery position of
22 41 24 +11 56 (2000). Harold Corwin lists a faint galaxy at 22 42 12.6
+11 52 39 as a probable ID although this gx is still 49s E and 3' S (11'
ESE) of Marth's position. This ID is very uncertain due to the discrepancy
in positions. Not listed in MCG, CGCG or RC3.
Carlson lists N7353 as a SBc gx (no position given). Not found by Reinmuth
and the nearest GSC star is about 3' from Marth's positon.
U12134 is incorrectly identified as N7353 in RC3 and RNGC although this gx
is not identified as N7353 in UGC. This galaxy is 1.8 tmin W of Marth's
position and also 10' S. The position given in DSFG is fairly close but
the rest of the data describes U12134. Listed in RNGC Corrections #2.
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NGC 7403 (22h 53.1m +01° 29')
Discovered by Coolidge on 15 Nov 1859 (AN 1453). Described simply as a
nebulous star with a very rough position (nearest tmin) requiring
verification.
Not found by Reinmuth or Spitaler. Listed as a single star by HC. There
is a mag 13.4 GSC star close to Coolidge's (rough) position at 22 53 06.4
+01 28 57 (J2000).
In searching for this object, Burnham found a nearby galaxy which felt was
probably N7403. Dreyer catalogued it as IC 1455 (also observed by
Spitaler). This gx is 40s W of Coolidge's rough position and 6.6' N.
NGC 7414 (22h 55.3m +13° 15')
On 2 Sept 1886 Swift recorded the following two objects in list 4:
N7413 22 54 48 +13 13 05 (2000)
eeF, pS, R, e diff, 8 or 10 st. in an irregular line p, s of 2
N7414 22 54 48 +13 15 35 (2000)
eeeF, S, R, eee dif, n of 2
According to these positions, Swift placed N7414 2.5' due N of N7413.
Using the 20" refractor at Chamberlin Observatory, Herbert Howe made a
number of micrometric measurements of NGC objects and corrected the
position of N7413 14s further east. This would place N7413 at 22 55 02 +13
13 05 (2000). This position matches up precisely with M+02-58-035 at the
following GSC position for 2000. Furthermore, there is a string of stars
to the SW exactly matches Swift's description.
N7413 22 55 03.1 +13 13 14 = M+02-58-035 = CGCG 430-029
No galaxy exists at either Swift's original position for N7414 or by
applying Howe's offset although there are a couple of very faint stars
about 2' N of N7413. Instead, the RNGC has identified N7414 with an
extremely small and faint anonymous object located 5' ENE of N7413. So,
N7414 should be listed as nonexistent in RNGC with a possible
identification as a faint star. Discussed in RNGC Corrections #4.
NGC 7423 (22h 55.3m +57° 08')
Discovered by WH (III 745) and observed by JH as h2191 although Dreyer
notes in Scientific Papers that their positions differ by about 1 tmin, so
the two entries may not refer to the same object. Dreyer used the position
of h2191 for the NGC. JH description reads: "A large patch of the milky
way, consisting of stars so small as to be quite nebulous. If this be not
III 745, I find no other."
Listed as a T7 OC in RNGC. Ling notes the equivalence with Be 57. There
is no clustering on the GSC at this position, though.
NGC 7431 (22h 57.6m +26° 10')
Bigourdan's nova N7431 was placed 19s W of N7436 and 55" N (4.3' WNW of
N7436). Exactly at this separation is an extremely faint galaxy (possibly
a merged double on DSS) at GSC position 22 57 38.7 +26 09 51 (2000). This
object is not listed in any modern catalogue. See article in 10/89 W.S.Q.J.
and Catalogue Corrections, (Malcolm Thompson).
Rosse discovered the gx that RNGC, CGCG (Z475-006), UGC (notes to N7436)
all identify as N7431 on 12 Oct 1855. Although clearly shown on the
sketch, the 29 Sept 1875 observation states "the object preceding in the
1857 sketch is a faint star, night bad." Because of this last statement,
MT feels Dreyer decided to not include this object in the NGC as N7431 is
attributed to Bigourdan. Rosse's object is located 1.5' NW of N7436 at 22
57 52.0 +26 09 46 (2000) with dimensions 0.8'x0.2', 15.6z and was missed in
my 17.5".
NGC 7433 (22h 58.0m +26° 09')
Discovered by LdR on 12 Oct 1855. Clearly shown on his sketch of the field
just off the preceding side of N7436 and described in three of the
observations.
This gx is identified as N7436a in MCG (+04-54-005) and RNGC and it is
mentioned in the UGC notes to N7436 although not identified as N7433. Not
listed in RC3.
RNGC gives the same coordinates for (R)N7433, (R)N7436A, (R)N7436B so the
RNGC ID's are uncertain.
Harold Corwin feels this galaxy was rejected by Dreyer in the NGC and
hence should be listed as N7436w.
NGC 7439 (22h 58.2m +29° 14')
Marth's RA is exactly 30s E of U12273 = M+05-54-021 although Bigourdan's
corrected dec in the IC 2 notes is also 5' too far S! Marth gives an
unusual description "long patch of F neby" as U12273 appeared circular in
my visual observation.
Not found by Reinmuth or in Publications of the Lick Observatory, 13, 1918.
Listed as unverified in the N2000 at Bigourdan's position and MCG gives
the NGC designation as uncertain.
NGC 7441 (22h 59.5m -07° 03')
Discovered by Stone (I). His rough position is a good match with
M-01-58-013 although his RA is to the nearest tmin and the dec is
uncertain.
Stone's observation mentions a mag 10 star preceding, although there is no
bright star W on GSC. There is a mag 12.9 star 5' W which might be this
star. Not found by Bigourdan.
NGC 7452 (23h 00.8m +06° 45')
Discovered by Swift (II) along with N7459 (and N7455). His position falls
in a small but rich cluster. RNGC and MCG identify N7452 as the brightest
member U12302 = M+01-58-021. This is a double system with nuclei only 10"
apart. Howe apparently also identifies this gx as N7452 (MN, Vol 60,
129).
Instead, Harold Corwin suggests that N7452 may be an anonymous gx at GSC
position 23 00 47.5 +06 44 44 (J2000). This places N7452 21s of RA
preceding Swift's position (exact in dec) and roughly matches his offset
for N7455 (38s of RA).
This also implies N7459 = U12302 which is 12s following (Swift's offset is
20s). Interestingly, Howe mentioned he suspected another neb preceding by
15s [of the gx he identified as N7452]. This probably refers to the gx HC
identifies as possibly N7452.
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NGC 7459 (23h 01.0m +06° 45')
Discovered by Swift (II) along with N7452. Listed as nonexistent in RNGC
and not listed in Reinmuth.
Harold Corwin suggest this number may refer to U12302 = M+01-58-021 which
RNGC and MCG identify as N7452. UGC does not give a NGC designation. This
is a double system with nuclei only 10" apart. GSC lists both components
at 23 00 59.7 +06 44 58 and 23 01 00.2 +06 45 04. This is the brightest
gx in a small but rich group of ef gx's.
Swift's RA is 29s further E (of U12302) and is comparable to his error of
38s for N7455 discovered on the same night. If this ID is correct, N7452
possibly refers to a previously uncatalogued galaxy 12s of RA further W.
The UGC dec for U12302 is 5' too far N and does not list the equivalence
with M+01-58-021 (or give any NGC designation).
NGC 7481 (23h 05.8m -19° 57')
Discovered by Stone. Not found by HC or RNGC. ESO lists a questionable ID
of E604-G3, located at 23 06 13 -19 43.9 (2000). This position is 20 tsec
E and 7' N of Stone's place.
NGC 7553 (23h 15.5m +19° 03')
This object was discovered by the Rosse observers in a group of galaxies
with brightest member N7550 = Hick 93. Neither Rosse nor Schultz, who also
examined the field, gave specific positions for this object so I'm not sure
how Dreyer arrived at the NGC position. A diagram of the field was made at
Birr Castle on 6 Oct 1877 and confirmed on 10 Oct 1877 and the four
galaxies, N7547, N7549, N7550 and N7553 are shown. Although the direction
of drift shown is somewhat off, it is easy to match the sketch with the
POSS except for N7553. The brightest galaxy near Rosse's position is
Z454-015 at 23 15 32.9 +19 03 01 (2000) and this is the galaxy identified
as N7553 in RNGC (with imprecise coordinates).
Although it is very possible that this was the object seen at Birr Castle,
the sketch does not match up well with this galaxy and actually falls
closer an extremely faint star and galaxy at 23 15 38.7 +18 58 25 (2000)
although this may be too faint to have been picked up visually. Finally,
there is a close double star near CGCG 454-015 at 23 15 36.3 +19 01 54
(2000) but the galaxy is similar visibility.
NGC 7555 (23h 15.6m +12° 35')
Discovered by JH (h2221) who mentions "place very rough". Listed in NGC
although Dreyer was aware that this object was not found by d'Arrest or
Schultz (notes in Micrometric Observations). Observed once by Rosse
although may have identified the wrong object. Not found by Reinmuth.
Listed as a dubious NGC object by Hagen.
NGC 7564 (23h 15.6m +07° 19')
Either Bigourdan gave imprecise coordinates for this gx by 20s of RA and
3.5' of dec or else his observation is invalid and this is an anonymous gx.
Malcolm Thompson favors the solution that N7564 is nonexistent. Corrections.
This gx is not listed in MCG. GSC position 23 15 38.4 +07 18 43.
NGC 7565 (23h 16.3m -00° 03')
Discovered by Secchi. Reinmuth describes "*15 in Dreyer's place."
(repeated by Carlson). Not found by Bigourdan or Harold Corwin.
NGC 7571 (23h 17.2m +18° 42')
Discovered by Schultz. Bigourdan has a corrected RA in the IC 2 notes which
is very close to N7578. Schultz's declination is 17' N of N7578, though.
Although listed as a duplicate of N7578 by Sulentic, at Bigourdan's
position on the GSC are two mag 14 stars at 12" separation! Reinmuth also
describes N7571 as "identif very doubtful; vF** dist 0.3' 135d, np *
nebulous?, N7571 = N7578?". This equivalence is repeated in RNGC.
Stangely, I cannot find this object mentioned by Schultz in MN paper or
Micrometric Observations of 500 Nebulae.
NGC 7616 (23h 19.7m +10° 11')
Discovered by Common (Copernicus list). His position is 28s E and 1' S of
N7610 (in same list). RNGC identifies an extremely faint gx located 12s W
and 1' S (4' SW) of N7610. Although these aren't large differences in RA,
this would have placed N7616 on the W side of N7610. It is possible that
Common reobserved the same gx but with different positions. Listed as a
dubious NGC object by Hagen.
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NGC 7638 (23h 22.5m +11° 20')
Common's position was very vague "there are 2 similar nebulae within 30' sf
No. 32 [N7630]". CGCG (431-46) and MCG (+02-59-30) identify this gx as IC
1483 whose position (from Javelle) is precise. This gx is located in a
group of 4 extremely gx's. Not listed in RC3 or GSC. Position estimated
from Deep Sky CCD Atlas and GSC.
NGC 7639 (23h 22.8m +11° 22')
Discovered by Common and vaguely described as one of two galaxies within
30' south-following N7630. A possible candidate is IC 1485 = M+02-59-032 =
CGCG 431-050 whose position from Javelle is exact.
This gx is identified in CGCG (431-50) as IC 1485 and in MCG (+02-59-032)
as IC 1484 (this is incorrect as IC 1484 is a fainter galaxy WNW).
Javelle's IC positions for IC 1483, 1484 and 1485 are exact matches for the
three brightest galaxies in the field although the NGC identification is
plausible given that Common's position was uncertain. Not listed in RC3.
GSC position 23 22 48.2 +11 22 22.
NGC 7663 (23h 26.8m -04° 57')
Discovered by Secchi. His position is 13' NNE of (R)N7663 = M-01-59-023
although his positions are generally poor. HC notes that N7663 is possibly
M-01-59-023 but it could also be M-01-59-022 close preceding. Neither gx
is identified as N7663 in the MCG. RC3 does not include either MCG entry.
GSC positions for M-01-59-022 = 23 26 27.2 -04 57 56 and M+01-59-023 = 23
26 45.2 -04 57 59. Only M+01-59-022 seen in fair seeing on 12/16/95.
Either object is really a guess for N7663 but M+01-59-022 appears more
probable.
Reinmuth's entry for N7663 (at the NGC position) lists a "neb or *15.0".
NGC 7667 (23h 24.3m -00° 06')
Discovered by Secchi (AN 1571). His position is 3.0 tmin E (off by 45')
and 4.5' S of U12578. This gx is not identified as N7667 in UGC, CGCG
(380-050), MCG (+00-59-038) or ESGC. N7667 was not found by Bigourdan.
Reinmuth's description probably applies to a star.
This gx appears bright enough to be seen by Secchi and the very imprecise
positions may have originated from reading the setting circles. Still,
this ID is very uncertain.
Also this gx has 3 compact knots just off the W edge (collinear and equally
spaced) which could match Secchi's brief description of N7668/69/70 as
"surrounding N7667". But Harold Corwin feels the 3 knots are probably too
faint to be seen by Secchi (15"-20" aperture) and these numbers may refer
to U12589 and 2 double stars at 23 21 54.6 -00 12 35 and 23 22 12.5 -00
21 42 (1950) although this is really guesswork.
NGC 7668 (23h 27.2m -00° 11')
Discovered by Secchi as one of several objects "surrounding" N7667. Not
found by Bigourdan. If N7667 = U12578, is N7668 possibly a knot in the
galaxy? Not found by Harold Corwin.
NGC 7669 (23h 27.2m -00° 11')
Discovered by Secchi surrounding N7667. Possibly a knot in N7667 (whose
identity is very uncertain!) but likely nonexistent. Not found by
Bigourdan or Harold Corwin.
NGC 7670 (23h 27.2m -00° 11')
Discovered by Secchi surrounding N7667. Possibly a knot in N7667 but more
likely nonexistent. Not found by Bigourdan or Harold Corwin. See
discussion under N7667.
NGC 7726 (23h 39.2m +27° 07')
Discovered by Lewis Swift on 8 Aug 1886 within the rich galaxy cluster
Abell 2634. His discovery position is 23 37 00 +26 42 36 (1950) or 14' ESE
of N7720, the brightest member of the cluster.
Not found by Bigourdan and there is no object near his position and the
RNGC has misidentified N7726 with IC 5342 = Z476-092 which was discovered
by Howe and correctly placed at 23 36 08 +26 44.1 (1950). This galaxy is
one of the several very close companions of N7720 and lies just 2.4' SE.
As a more plausible candidate, Harold Corwin has suggested N7726 = U12721 =
MCG +04-55-040 = CGCG 476-098 at 23 36 41.4 +26 50 18 (1950) which is
closer to Swift's position. This identification is uncertain, though, as
Swift mentions a "pB* nr f" and the mag 9 star is actually 9' following
altlhough Swift mentioned that N7728 is north-following which does match
U12721.
In any case, the RNGC identification is certainly incorrect. I described
this object as nonexistent in RNGC Corrections #4. Relisted in RNGC
Corrections #6.
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NGC 7730 (23h 41.4m -20° 14')
Discovered by Tempel who gave a very rough position to 1 tminą of RA.
Dreyer placed this object about 50s E of Tempel's RA in AN 2212 (possibly
Tempel later corrected the position). Not found by Howe on 2 nights (IC 2
notes). Identified in ESO as E606-G2 = M-04-55-022. Tempel's rough
position is 36 seconds E but also 17' N of this galaxy. With B(T) = 14.8,
it seems unlikely that Tempel would refer to this object class II.
NGC 7738 (23h 44.0m +00° 31')
This entry is from Secchi who listed 14 objects in his discovery article in
AN #1571 although a number of these objects cannot be identified. N7738
and N7739 were listed with a single position which is reasonable close (30s
of RA) to U12757. This gx (U12757) is identified as N7738 in RNGC and RC3,
N7738 = N7739 in UGC, and as an anonymous gx in MCG (M+00-60-038).
RNGC lists N7739 as nonexistent but the RA is 0.5 tmin W of N7738 (using
Secchi's original position). RC3 tentatively identifies N7739 = Z381-038
at 23 44 30.1 +00 19 12 although this gx does not make a close pair with
N7738 = U12757 (it is 13.7' SSE). Harold Corwin notes that both of these
identifications are uncertain.
NGC 7739 (23h 44.0m +00° 31')
Discovered by Secchi as a pair with N7738 (given one position in AN 1571).
Not found by Bigourdan, Reimuth or on Mt Wilson plates.
RC3 and DSFG identify N7739 = Z381-038 at 23 44 30 +00 19 12 although this
identification is very uncertain as the gx does not make a close pair with
N7738 = U12757? at 23 44 02.0 +00 31 01 (14' separation between the
galaxies).
CGCG 381-038 is not in MCG. RNGC lists N7739 as nonexistent. See notes for
N7738. Listed in RNGC Corrections #2.
NGC 7756 (23h 48.6m +04° 06')
In the single Birr Castle observation of N7757 on 1873, Dec 11, LdR simply
descibed "another neb 5' south preceding". RNGC incorrectly identifies
N7756 with an extremely faint anonymous galaxy located 1' W of N7757 and
CGCG incorrectly identifies N7757 as N7756.
Rosse's offset from N7757 corresponds to a star according to RC2 and UGC.
More specifically, Harold Corwin suggests N7757 is a 20" pair of mag
14.6/15.1 stars in the GSC with a mean position of 23 48 34.0 +04 05 35.
This pair is 5.5' SW of N7757, very close to Rosse's offset. A less
likely candidate is a star + F gx at 23 48 28.7 +04 02 58 but this is 8.5'
SSW of N7757. In either case, the RNGC identification is clearly in error.
Listed in RNGC Corrections #2.
NGC 7799 (23h 59.3m +31° 17')
Discovered by d'A. The NGC RA is 9s E of U12882. The DSS image shows an
extremely faint edge-on galaxy 1.5' N of a close triple star (could this
have been d'Arrest's object?). U12882 is not in MGC, CGCG or GSC.
NGC 7813 (00h 04.2m -11° 59')
Muller's position is 1.0 tmin W (typical error) though his elongation and
placement of a nearby bright star are reversed. Howe discovered IC 5384
whose position is correct. His comments in the IC 2 Notes and Corrections
section also mention that he only found one object with a different
description than Muller's object. Not found by Bigourdan and listed as a
dubious NGC object by Hagen.
This gx is identified in MCG as IC 5384 and is not listed in RC3.
Incorrect position in N2000 and DSFG (from Muller's NGC position). Listed
in ESGC as N7813 with IC 5384 as a secondary ID.
NGC 7840 (00h 07.1m +08° 23')
Discovered by Marth in 1864 as part of a small group of galaxies including
NGC's 7830, 7834, 7835, 7837, 7838, 3, 4. With the exception of N7830
which is mostly likely a star, the other members have been identified with
faint galaxies. N7840 is listed as nonexistent in RNGC.
Harold Corwin identifies a likely candidate at 00 07 08.9 +08 23 00 (2000).
This extremely faint galaxy is less than 3' S of Marth's position. Although
I missed viewing this galaxy in my 17.5" and it is not listed in any modern
catalogue, it was likely visible to Marth using Lassell's 48" equatorial.
First discussed in personal correspondence with Harold Corwin on 7/18/86.
Listed in RNGC Corrections #2.
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