Discoveries 1 - 25
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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1
R.A. / Dec. - Constellation
23:32:24.7 +62°06'25" - Cassiopeia
Suspected nature of object
Emission nebula or planetary nebula
Description
A small nebula, approximately 80"×60". Two lobed, surrounding the carbon star DS Cassiopeia. Most prominent to the east-southeast of the star.
Not unlike the - much larger - planetary nebula Sharpless 2-174 - the "Valentine Rose Nebula" in Cepheus.
Date, plate or visually
14 January 2010, plate
2
R.A. / Dec. - Constellation
23:07:15 +60°52'54" - Cepheus
Suspected nature of object
Asterism or open cluster
Description
A small, curved pattern of stars, elongated north-northeast to south-southwest, approximately 2.5'×1.5'. I dub this "the Little Fishhook".
3' South-southwest is the double star Burnham 180 (WDS23072+6050).
Date, plate or visually
31 October 2010, visually
3
R.A. / Dec. - Constellation
05:52:25 -63°49'30" - Dorado
Suspected nature of object
Nebula? Galaxy?
Description
A small, irregular blob, approximately 30"×15". 10° North-northeast of the center of the Large Magellanic Cloud.
Date, plate or visually
2 January 2012, plate
4
R.A. / Dec. - Constellation
04:08:30 +62°27'38" - Camelopardalis
Suspected nature of object
Asterism - part of open cluster
Description
A detached part of the open cluster NGC1502, on the northeastern side, 8'×4'. When I observed this I first assumed it to be separate from the cluster, but this star pattern is a part of it. I dub this the "NGC1502 Stickman".
Date, plate or visually
16 March 2012, visually
5
R.A. / Dec. - Constellation
04:05:00 +62°26'30" - Camelopardalis
Suspected nature of object
Asterism or open cluster
Description
A scattered, moderately detached group, 13'.
20' East-southeast is the open cluster NGC1502.
Date, plate or visually
16 March 2012, plate
6
R.A. / Dec. - Constellation
18:16:24 -18°05'13" - Sagittarius
Nature of object
This was determined to be an open cluster in the Catalog of Newly Identified Star Clusters in GAIA DR2, FoF 935.
Description
A nice condensation of stars, 4', on the western edge of the dark nebula Barnard 93.
To the southwest is Barnard 92, 13' south-southeast is the open cluster Collinder 469.
Date, plate or visually
1 April 2012, plate
7
R.A. / Dec. - Constellation
05:27:07.5 -75°21'00.5" - Mensa
Suspected nature of object
Asterism or open cluster
Description
A small condensation of stars, approximately 50"×35". 5.5° South of the center of the Large Magellanic Cloud.
Date, plate or visually
22 January 2013, plate
8
R.A. / Dec. - Constellation
13:32:41.5 -29°34'53" - Hydra
Suspected nature of object
Reflection nebula, or image artefact
Description
Possibly an image artefact, only visible on a POSS2 Blue plate.
105" Northwest is the mag. 6.4 star SAO181735.
Date, plate or visually
26 January 2013, plate
9
R.A. / Dec. - Constellation
12:54:28 -09°33'40" - Virgo
Suspected nature of object
Reflection nebula
Description
Surrounding the mag. 4.8 star Psi Virginis, approximately 5'. Most prominent to the southeast of the star.
Not unlike the nebulosity surrounding the star 86 Virginis (nr. 61), almost 13° to the east-southeast.
13' West is the galaxy NGC4770.
Date, plate or visually
10 February 2013, plate
I was able to confirm this nebula in a crude image on 14 April 2015.
10
R.A. / Dec. - Constellation
09:27:48 +12°26'00" - Leo
Suspected nature of object
Asterism
Description
A large scattering of stars I dub "the Churchbell", 35'.
Date, plate or visually
13 February 2013, plate
11
R.A. / Dec. - Constellation
18:31:43 +04°25'50" - Serpens (Cauda)
Suspected nature of object
Asterism or open cluster
Description
An elongated group of stars, 5.5'×2.0' on the border of the constellations of Serpens (Cauda) and Ophiuchus.
5' West-southwest is the carbon star TY Ophiuchi.
Date, plate or visually
14 April, visually
12
R.A. / Dec. - Constellation
21:26:54 +43°27'40" - Cygnus
Suspected nature of object
Asterism or open cluster
Description
A scattered group of stars, centrally poor and richer in the western part, approximately 8.5'. 90" West-southwest of the center is the mag. 8.2 star SAO50856.
14' South is the double star h1646 (WDS21273+4315).
Date, plate or visually
4 August 2013, visually
13
R.A. / Dec. - Constellation
07:16:35 -24°36'11" - Canis Major
Suspected nature of object
Reflection nebula or dark nebula
Description
Elongated north-northeast to south-southwest, 4.0'×1.5'.
8' South-southeast is the galaxy PGC20564.
Date, plate or visually
14 September 2013, plate
14
R.A. / Dec. - Constellation
07:17:15.2 -24°31'15" - Canis Major
Suspected nature of object
Reflection nebula
Description
Extremely small and faint, 30"×20".
Date, plate or visually
14 September 2013, plate
15
R.A. / Dec. - Constellation
07:17:02.7 -24°21'24" - Canis Major
Suspected nature of object
Reflection nebula
Description
Extremely small and faint, 50"×35".
Date, plate or visually
14 september 2013, plate
16
R.A. / Dec. - Constellation
07:18:10 -23°57'35" - Canis Major
Suspected nature of object
Planetary nebula or reflection nebula
Description
Extremely faint, curved shape, 7'.
Date, plate or visually
14 September 2013, plate
17
R.A. / Dec. - Constellation
19:44:23 +23°35'05" - Vulpecula
Suspected nature of object
Reflection nebula
Description
Surrounding the mag. 12.6 star 4UCAC568-094537, 45"×30", most prominent to the southeast of the star.
Date, plate or visually
15 September 2013, plate
18
R.A. / Dec. - Constellation
19:45:01.3 +23°44'55" - Vulpecula
Suspected nature of object
Dark nebula
Description
Elongated north to south, 8.0'×0.5'.
Date, plate or visually
19 September 2013, plate
19
R.A. / Dec. - Constellation
19:46:26.2 +23°51'20" - Vulpecula
Suspected nature of object
Reflection nebula
Description
Elongated northeast to southwest, 100", surrounding the mag. 8.7 star SAO87699.
Date, plate or visually
19 September 2013, plate
20
R.A. / Dec. - Constellation
20:04:56 +34°00'40" - Cygnus
Suspected nature of object
Asterism or open cluster
Description
A scattered group, elongated northeast to southwest, 6.0'×3.5', with a pentagon shaped pattern of stars on the southwestern edge.
7' South-southwest is the open cluster Berkeley 84.
Date, plate or visually
27 September 2013, visually
21
R.A. / Dec. - Constellation
20:03:12 +31°59'00" - Cynus
Suspected nature of object
Asterism or open cluster
Description
A scattered group, 10'×8', surrounding the small open cluster Kronberger 54.
5' West-southwest is the mag. 6.5 star SAO69307.
Date, plate or visually
27 September 2013, visually
22
R.A. / Dec. - Constellation
23:19:48 +25°58'30" - Pegasus
Suspected nature of object
Asterism or open cluster
Description
A scattered group, 13'.
3' Northeast of the center is the galaxy MCG+04-55-000 (PGC71094), 5' east-northeast of the center is PGC71116, 9' northwest is MCG+04-55-002 (PGC71056).
Date, plate or visually
22 September 2014, visually
23
R.A. / Dec. - Constellation
23:11:00 +11°02'15" - Pegasus
Suspected nature of object
Asterism or open cluster
Description
A small, scattered group, elongated northeast to southwest, 4'×2'.
7' West-southwest is the galaxy NGC7500.
Date, plate or visually
9 november 2014, plate
24
R.A. / Dec. - Constellation
03:43:12 +39°12'00" - Perseus
Suspected nature of object
Dark nebulae
Description
Three small dark nebulae in a row, aligned east-southeast to west-northwest, approximately 8' in length.
Date, plate or visually
20 November 2014, plate
25
R.A. / Dec. - Constellation
03:42:06 +39°42'00" - Perseus
Suspected nature of object
Reflection nebula or dark nebula
Description
Extremely faint, irregular nebulosity in a northwest-southeast elongated, curved shape, 14'.
Best viewed in DSS2 Red - image color reversed.
Date, plate or visually
20 November 2014, plate