Discoveries 51 - 75
Suspected deep sky objects that are, to the best of my knowledge, unknown and undesignated. Most of these were stumbled upon on DSS images while compiling CSOG observing guides. A few asterisms, possibly open clusters were seen during observing runs.
Before posting, I check multiple images (DSS, SDSS, DECaLS) to rule out artefacts. Once an object is determined to be real I check SIMBAD, NED, HyperLeda (for suspected galaxies), possible planetary nebulae, historical catalogs (for nebulae) and every available catalog in AstroPlanner.
The majority of these objects were reported on the Deep Sky Hunters group.
Whenever it is brought to my attention that an object that I suspected to be unknown / uncataloged / undesignated was indeed recognized before, I will remove it from my list and update the numbering accordingly.
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51
R.A. / Dec. - Constellation
04:28:32.1 +01°22'51" - Taurus
Suspected nature of object
Reflection nebula
Description
Drapes of nebulosity west, southwest and south of the mag. 5.5 star SAO111845.
Date, plate or visually
28 May 2019, plate
52
R.A. / Dec. - Constellation
16:59:43 +48°18'00" - Hercules
Suspected nature of object
Asterism or open cluster
Description
A scattered, east to west elongated group, 10'×6'. On the northeastern edge is the mag. 9.5 star SAO46431.
Date, plate or visually
6 July 2019, visually
53
R.A. / Dec. - Constellation
22:38:39.3 +35°41'50.4" - Lacerta
Suspected nature of object
Galaxy
Description
A small galaxy.
Date, plate or visually
21 July 2019, plate
54
R.A. / Dec. - Constellation
03:53:14 +61°57'40" - Camelopardalis
Suspected nature of object
Asterism or open cluster
Description
An almost round group, 3.5', slightly flattened west-soutwest to east-northeast. More stars are visible in the east-northeastern part. Consists of mag. 12.5 and fainter stars.
6' East of the open cluster Czernik 17.
Date, plate or visually
20 January 2020, visually
55
R.A. / Dec. - Constellation
04:53:46 +25°17'45" - Taurus
Suspected nature of object
Reflection nebula or planetary nebula
Description
Elongated and irregular.
4' North-northwest is the double star Aitken 1843 (WDS04536+2522).
Date, plate or visually
30 January 2020, plate
56
R.A. / Dec. - Constellation
11:35:04 -14°05'06" - Crater
Suspected nature of object
Galaxy
Description
An east-west elongated, irregular or Magellanic Spiral galaxy with several HII regions.
Date, plate or visually
18 February 2020, plate
57
R.A. / Dec. - Constellation
10:53:54.5 -16°06'14.8" - Crater
Suspected nature of object
Galaxy
Description
A small and faint, irregular galaxy.
82" Southeast is the galaxy MCG-03-28-017 (PGC32724), 5' north-northeast is NGC3456.
Date, plate or visually
18 February 2020, plate
58
R.A. / Dec. - Constellation
23:31:09 +03°53'57" - Pisces
Suspected nature of object
Galaxy
Description
A small and faint, irregular galaxy with several associated clumps, annular shape.
Date, plate or visually
18 February 2020, plate
59
R.A. / Dec. - Constellation
03:43:00.5 -21°56'50" - Eridanus
Suspected nature of object
Galaxy
Description
A very small and faint (dwarf?) galaxy.
Date, plate or visually
18 February 2020, plate
60
R.A. / Dec. - Constellation
01:51:31.05 +22°45'40.2" - Aries
Suspected nature of object
Galaxy
Description
An irregular galaxy with multiple associated clumps.
Date, plate or visually
18 February 2020, plate
61
R.A. / Dec. - Constellation
13:45:56.32 -12°25'35.5" - Virgo
Suspected nature of object
Reflection nebula
Description
Faint nebulosity surrounding the double star 86 Virginis (STF1780 - WDS13459-1226). Best seen on POSS2 Blue.
Not unlike the nebulosity surrounding the star Psi Virginis (nr. 9), almost 13° to the west-northwest.
2.5' South-southwest is the galaxy IC927, 3' south-southeast is PGC952293, 5' west-southwest is IC924.
Date, plate or visually
7 July 2020, plate
62
R.A. / Dec. - Constellation
06:07:47 +30°06'10" - Auriga
Suspected nature of object
Reflection nebula(e), approximately 75"×60" in size.
Description
A triangle of stars (SAO58771, 4UCAC601-029679 & 4UCAC601-029694) involved in faint nebulosity.
Date, plate or visually
5 September 2020, plate
63
R.A. / Dec. - Constellation
22:29:09 +57°07'20" - Cepheus
Suspected nature of object
Asterism or open cluster, approximately 8'×5' in size.
Description
Visually, a detached group of stars, elongated north-northwest to south-southeast. Contains the orange colored star TYC3991-00696-1.
To the north of the group is the star SAO34507 that is colored orange, too. The group's branching lanes of stars give it a spider-like appearance.
Date, plate or visually
23 September 2020, visually
64
R.A. / Dec. - Constellation
10:03:18 +72°09'08" - Ursa Major
Suspected nature of object
Galaxy
Description
A small, faint galaxy with a very bright nucleus.
Date, plate or visually
3 December 2020, plate
65
R.A. / Dec. - Constellation
10:04:09 +72°10'17" - Ursa Major
Suspected nature of object
Galaxy
Description
A small, faint galaxy. A small knot is on the west-northwestern edge, a faint star is superimposed over the southeastern edge.
Date, plate or visually
3 December 2020, plate
66
R.A. / Dec. - Constellation
15:42:23.5 +05°09'10" - Serpens (Caput)
Suspected nature of object
Asterism or open cluster
Description
A small, detached, elongated group of approximately 15 stars, approximately 3'×2' in size. The brightest star in the group is 4UCAC476-056890 (mag. 11.8).
Date, plate or visually
7 March 2021, plate
67
R.A. / Dec. - Constellation
08:24:38.1 -77°47'27.9" - Chamaeleon
Suspected nature of object
?
Description
An extremely small and faint, irregular blob.
85" East-northeast is the mag. 8.3 star SAO256514, 100" west-northwest is the galaxy PGC23573.
Date, plate or visually
22 March 2021, plate
68
R.A. / Dec. - Constellation
04:59:02 +37°55'48" - Auriga
Suspected nature of object
Reflection nebula
Description
A very small and faint, elongated glow directly south of the mag. 12 star 4UCAC640-021255. Approximately 60"×30" in size.
3.5' Northwest of the star Omega Aurigae.
Date, plate or visually
7 July 2021, plate
69
R.A. / Dec. - Constellation
20:31:51 +11°03'30" - Delphinus
Suspected nature of object
Reflection nebula
Description
An extremely faint, elongated glow extending east-northeastwards from the mag. 9.9 star TYC1091-00412-1. Approximately 5.0'×2.5' in size.
25' Southwest of the star Epsilon Delphini.
Date, plate or visually
7 July 2021, plate
70
R.A. / Dec. - Constellation
19:25:55.85 +50°02'09.5" - Cygnus
Suspected nature of object
Galaxy
Description
A suspected Magellanic (?) spiral galaxy, approximately 45"×30" in size with a brighter core that is perpendicular to the major axis.
8' Southwest of the galaxy group KPG 539 (IC4867 & MCG+08-35-011).
Date, plate or visually
10 September 2021, plate
71
R.A. / Dec. - Constellation
00:28:43.9 +62°51'01" - Cassiopeia
Suspected nature of object
Reflection nebula or galaxy
Description
Elongated east to west, approximately 1.0'×0.5' in size, surrounding the mag. 12.1 star 4UCAC765-006251 (or the star is superimposed).
Date, plate or visually
16 October 2021, plate
72
R.A. / Dec. - Constellation
00:31:41.5 +62°40'09" - Cassiopeia
Suspected nature of object
Nebula or planetary nebula
Description
An irregular roundish glow, approximately 100" in size. In the center is the mag. 14.7 star 4UCAC764-007116, on the northern edge is the mag. 11.9 star TYC4019-02775-1. Directly southwest of the nebula may be a small, dark nebula. 3' Southeast is nr. 165.
On the northeastern edge of the large, irregular and extremely faint emission nebula Sharpless 1-124.
Date, plate or visually
16 October 2021, plate
73
R.A. / Dec. - Constellation
00:32:04.8 +63°51'11" - Cassiopeia
Suspected nature of object
Reflection nebula
Description
Elongated east to west, approximately 2.5'×1.0' in size directly north of the mag. 10.4 star TYC4023-00358-1. Two elongated streaks can be discerned, both running WNW to ESE, the southern one being the brightest.
Date, plate or visually
16 October 2021, plate
74
R.A. / Dec. - Constellation
17:01:04 -04°13'21" - Ophiuchus
Suspected nature of object
Emission and/or reflection nebula
Description
Nebula surrounding the mag. 4.8 star 30 Ophiuchi. Clearest to the south and southwest of the star with a prominent spike towards the west.
Almost 1° of arc due east of the globular cluster Messier 10 (NGC6254).
Date, plate or visually
20 November 2021, plate
75
R.A. / Dec. - Constellation
05:11:26 +38°07'04" - Auriga
Suspected nature of object
Reflection nebula
Description
A small, faint nebula, approximately 60"×35" in size, directly northeast of the mag. 12 star TYC2896-01854-1. 9' Northwest of the emission nebula Sharpless 2-226 and half a degree of arc southwest of the star Mu Aurigae.
On the POSS2 Blue plate, a distinct image artefact is 4' to the northwest.
Date, plate or visually
21 December 2021, plate
