Clear Skies

visual astronomy

351 and further

Discoveries 351 and further

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 and a single galaxy 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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351 - 352 - 353 - 354 - 355 - 356 - 357 - 358 - 359 - 360 - 361 - 362 - 363 - 364 - 365 - 366 - 367 - 368 - 369 - 370 - 371 - 372 - 373 - 374 - 375 - 376 - 377 - 378 - 379 - 380 - 381 - 382 - 383 - 384 - 385

1-50 - 51-100 - 101-150 - 151-200 - 201-250 - 251-300 - 301-350

385

R.A. / Dec. - Constellation

00:09:24 +58°40'15" - Cassiopeia

Suspected nature of object

Reflection nebula

Description

A relatively large and bright, north-south elongated nebula involving the mag. 7.9 B9 star SAO21137.
11' West-southwest of the reflection nebula Lynds 578.

Date, plate or visually

15 June 2025, plate

10' POSS2 Blue

10' POSS1 Blue

10' PanSTARRS

384

R.A. / Dec. - Constellation

00:06:55.9 +65°37'18.1" - Cassiopeia

Suspected nature of object

Reflection nebula

Description

A very small, extremely faint nebula surrounding the mag. 13.9 star 4UCAC779-000245.
2.5' Southwest of the reflection nebula Struve-Straka 1 and the Herbig-Haro object Parsamian-Petrosyan 1.

Date, plate or visually

14 June 2025, plate

10' POSS2 Blue

10' POSS1 Blue

10' PanSTARRS

383

R.A. / Dec. - Constellation

22:13:35.9 +61°28'35.0" - Cepheus

Suspected nature of object

Reflection nebula

Description

A small nebula directly west of the mag. 11.4 star TYC4263-00128-1.
8' West-northwest of the reflection nebula Struve-Straka 64.

Date, plate or visually

9 June 2025, plate

10' POSS2 Blue

10' POSS1 Blue

10' PanSTARRS

382

R.A. / Dec. - Constellation

14:28:15.4 -02°13'27.6" - Virgo

Suspected nature of object

Galaxy

Description

A very small, faint, north-northwest to south-southeast elongated galaxy, approximately 0.3'×0,1' in size, 50" east-northeast of the mag. 4.9 double star Phi Virginis (STF1846 - WDS14282-0214).

Date, plate or visually

24 April 2025, plate

10' POSS2 Blue - 1

10' POSS2 Blue - 1

10' POSS1 Blue

381

R.A. / Dec. - Constellation

18:10:41.4 -17°36'51.2" - Sagittarius

Suspected nature of object

Reflection nebula

Description

A very small and faint nebula fanning out northwards from the mag. 13.9 star 4UCAC362-130131.

Date, plate or visually

15 April 2025, plate

10' POSS2 Blue

10' PanSTARRS

380

R.A. / Dec. - Constellation

18:12:21.8 -21°03'46.4" - Sagittarius

Suspected nature of object

Reflection nebula

Description

A small, fan-shaped nebula surrounding the mag. 14.1 star 4UCAC345-133000.

Date, plate or visually

14 April 2025, plate

10' POSS2 Blue

10' POSS1 Blue

10' PanSTARRS

379

R.A. / Dec. - Constellation

16:23:32.3 -25°23'48.6" - Scorpius

Suspected nature of object

Reflection nebula

Description

A very small and faint nebula surrounding the mag. 11.7 star TYC6798-00035-1.

Date, plate or visually

4 April 2025, plate

10' POSS2 Blue - 1976

10' POSS2 Blue - 1978

378

R.A. / Dec. - Constellation

16:24:59.1 -25°21'17.6" - Scorpius

Suspected nature of object

Reflection nebula

Description

A small and faint nebula surrounding the mag 8.5 A0 star SAO184372.
Possibly the star intended to be identified as associated with the reflection nebula Struve-Straka 56, that was perhaps incorrectly cataloged as associated with the star HD147702 (SAO184364, 22' to the south-southwest).

Date, plate or visually

4 April 2025, plate

10' POSS2 Blue

10' POSS1 Blue

377

R.A. / Dec. - Constellation

16:03:27 -49°23'43" - Norma

Suspected nature of object

Reflection nebula

Description

A very faint cometary nebula, elongated southwest to northeast, approximately 2'×1' in size.
10' South-southeast of the star Eta Normae.

Date, plate or visually

30 March 2025, plate

10' POSS2 Blue

10' POSS2 Red

10' DECaPS DR2

376

R.A. / Dec. - Constellation

14:17:31.8 -52°11'45.2" - Centaurus

Suspected nature of object

Reflection nebula

Description

A very faint, irregular nebula surrounding the mag. 11.3 star TYC8289-00849-1.

Date, plate or visually

30 March 2025, plate

10' POSS2 Blue

10' DECaPS DR2

375

R.A. / Dec. - Constellation

16:49:15.3 -14°22'09.0" - Ophiuchus

Suspected nature of object

Nebula

Description

A semi-circular nebula directly east of the variable star V1121 Ophiuchi (mag. 11.2-12.2). Involved in the dark nebula Lynds 152.

Date, plate or visually

26 March 2025, plate

10' POSS2 Blue

10' POSS2 Red

10' PanSTARRS

374

R.A. / Dec. - Constellation

20:01:37.6 +24°33'31.0" - Vulpecula

Suspected nature of object

Reflection nebula

Description

A small nebula that fans out directly south of the mag. 9.2 star TYC2145-00688-1.

Date, plate or visually

23 March 2025, plate

10' POSS2 Blue

10' POSS1 Blue

10' PanSTARRS

373

R.A. / Dec. - Constellation

19:29:52.8 +22°42'24" - Vulpecula

Suspected nature of object

Nebula

Description

A relatively bright nebula surrounding the mag. 7.1 K2 star SAO87278.

Date, plate or visually

22 March 2025, plate

10' POSS2 Blue

10' POSS2 Red

10' PanSTARRS

372

R.A. / Dec. - Constellation

18:37:25 -00°21'30" - Serpens (Cauda)

Suspected nature of object

Dark nebula

Description

A tadpole-shaped dark nebula, 4' southwest of the mag. 5.8 A0 star SAO142444.

Date, plate or visually

22 March 2025, plate

15' POSS2 Blue

15' POSS2 Red

371

R.A. / Dec. - Constellation

18:36:22.1 -00°13'44.9" - Serpens (Cauda)

Suspected nature of object

Reflection nebula

Description

A small nebula surrounding the mag. 12.6 star 4UCAC449-081261.

Date, plate or visually

22 March 2025, plate

10' POSS1 Blue

10' POSS2 Blue

10' PanSTARRS

370

R.A. / Dec. - Constellation

18:56:54 +09°31'00" - Aquila

Suspected nature of object

Reflection nebula

Description

An irregular nebula north of the mag. 8.6 A2 star SAO124084.

Date, plate or visually

22 March 2025, plate

10' POSS1 Blue

10' POSS2 Blue

10' PanSTARRS

369

R.A. / Dec. - Constellation

18:29:32.6 -00°13'23.5" - Serpens (Cauda)

Suspected nature of object

Reflection nebula

Description

Surrounding the mag. 11.1 star TYC5099-00024-1.

Date, plate or visually

22 March 2025, plate

10' POSS1 Blue

10' POSS2 Blue

10' PanSTARRS

368

R.A. / Dec. - Constellation

18:29:31.7 +01°08'20.5" - Serpens (Cauda)

Suspected nature of object

Reflection nebula

Description

Surrounding the stars TYC0433-00254-1 (mag. 11.3, west-southwest) and 4UCAC456-079488 (mag. 11.9, east-northeast), aligned west-southwest to east-northeast and separated by 25".
9' Southwest of the reflection nebula Bernes 12 (the "Serpens Reflection Nebula") and 11' Northeast of the reflection nebula Bernes 11.

Date, plate or visually

22 March 2025, plate

10' POSS1 Blue

10' POSS2 Blue

10' PanSTARRS

367

R.A. / Dec. - Constellation

06:19:01.6 +20°35'00.5" - Orion

Suspected nature of object

Reflection nebula

Description

A small and faint nebula surrounding the mag. 11.9 star 4UCAC553-024731. 4' West-northwest of the reflection nebula Sazhen 14.

Date, plate or visually

17 March 2025, plate

10' POSS2 Blue

10' PanSTARRS

366

R.A. / Dec. - Constellation

20:56:29.8 +65°30'32.0" - Cepheus

Suspected nature of object

Galaxy

Description

A small and faint spiral galaxy, approximately 0.7' in size.

Date, plate or visually

16 March 2025, plate

10' POSS2 Blue

10' POSS2 Red

365

R.A. / Dec. - Constellation

09:11:47.9 -45°26'53.2" - Vela

Suspected nature of object

Reflection nebula

Description

A very small and faint, north south-elongated nebula surrouding the mag. 10.9 star TYC8166-00975-1.
North-northwest of the reflection nebula Van den Bergh-Herbst 29B & C and north of Van den Bergh-Herbst 29A.

Date, plate or visually

13 March 2025, plate

10' POSS2 Blue

10' DECaPS2

364

R.A. / Dec. - Constellation

16:04:37 -37°50'15" - Lupus

Suspected nature of object

Reflection nebula

Description

A relatively large and bright nebula, elongated north to south and approximately 10'×8' in size, with filamentary wisps in the northern part.
The stars that are (visually) involved form the asterism Streicher 83.
In the background is the galaxy PGC4615984.

Date, plate or visually

12 March 2025, plate

20' POSS2 Blue - 1

20' POSS2 Blue - 2

20' DECaPS2 - 1

20' DECaPS2 - 2

363

R.A. / Dec. - Constellation

19:04:44.4 -36°50'40.3" - Corona Australis

Suspected nature of object

Reflection nebula

Description

A faint and irregular, east-west elongated nebula directly south of the mag. 8.2 A0 star SAO210888.

Date, plate or visually

11 March 2025, plate

10' POSS2 Blue - 1974

10' POSS2 Blue - 1977

362

R.A. / Dec. - Constellation

05:39:02.8 +34°59'36.5" - Auriga

Suspected nature of object

Reflection nebula

Description

A relatively bright nebula surounding several stars, the brightest of which is 4UCAC625-025815 (mag. 12.7) in the northwestern part of the nebula. Fainter nebulosity fans out towards the southwest.
24' Northeast of the emission nebula Simeis 142.

Date, plate or visually

7 March 2025, plate

10' POSS1 Blue

10' POSS1 Blue

10' PanSTARRS

361

R.A. / Dec. - Constellation

05:59:55.6 +32°06'44.0" - Auriga

Suspected nature of object

Nebula

Description

A very small and faint nebula southeast of the mag. 11.7 star TYC2410-01712-1.
2' West-northwest of the nebula Gyulbudaghian-Magakian 3-6 and 11' northwest of the nebula Struve-Straka 48.

Date, plate or visually

15 February 2025, plate

10' POSS2 Blue

10' POSS2 Red

10' PanSTARRS

360

R.A. / Dec. - Constellation

05:37:43.6 +31°50'45.3" - Auriga

Suspected nature of object

Reflection nebula

Description

A faint and irregular, northeast-southwest elongated nebula surrounding the mag. 12.4 star 4UCAC610-022208. Approximately 1.0'×0.5' in size.
8.5' South of the reflection nebula NGC1985 and 13' west of the reflection nebula Van den Bergh 45.

Date, plate or visually

9 February 2025, plate

15' POSS2 Blue

15' POSS1 Blue

359

R.A. / Dec. - Constellation

05:46:52.5 +25°03'47.0" - Taurus

Suspected nature of object

Nebula

Description

Irregular nebulous wisps, 25" northeast of the galaxy CAP 0543+25.

Date, plate or visually

31 December 2024, plate

10' POSS2 Blue

10' POSS2 Red

10' POSS2 IR

10' PanSTARRS

358

R.A. / Dec. - Constellation

22:10:41 +55°33'45" - Cepheus

Suspected nature of object

Nebula

Description

A faint, irregular, wasp-tailed nebula, elongated northwest to southeast. 7' Northwest of the planetary nebula PN G101.5-00.6 and 10' north of the open cluster NGC7226.

Date, plate or visually

9 November 2024, plate

15' POSS2 Blue

15' POSS2 Red

15' PanSTARRS

357

R.A. / Dec. - Constellation

04:52:31 +07°42'00" - Orion

Suspected nature of object

?

Description

A group of nebulous wisps, approximately 15' in size.

Date, plate or visually

25 October 2024, plate

30' POSS2 Red

30' DESI Legacy DR10

356

R.A. / Dec. - Constellation

01:34:32.2 -50°34'18.0" - Phoenix

Suspected nature of object

?

Description

Blue clumps and wisps (on DESI Legacy imagery), elongated north-northeast to south-southwest, west of the galaxy PGC465139 and east of the larger galaxy PGC465179.
Possibly a Voorwerp or a Blue blob.

Date, plate or visually

23 October 2024, plate

5' DESI Legacy DR10

5' GALEX

5' POSS2 IR

5' POSS2 Red

5' POSS2 Blue

355

R.A. / Dec. - Constellation

16:11:21.5 -48°30'45.0" - Norma

Suspected nature of object

Emission nebula

Description

A relatively bright, half-circle nebula, approximately 4.0'×2.5' in size. 32' North-northeast of the emission nebula Stromlo 51.

Date, plate or visually

5 October 2024, plate

15' POSS2 Red

15' DECaPS DR2

354

R.A. / Dec. - Constellation

16:10:57.8 -48°32'42.3" - Norma

Suspected nature of object

Emission nebula

Description

Surrounding the mag. 13.6 star 4UCAC208-117980. 29' North-northeast of the emission nebula Stromlo 51.

Date, plate or visually

5 October 2024, plate

10' POSS2 Red

10' DECaPS DR2

353

R.A. / Dec. - Constellation

16:10:11 -48°31'30" - Norma

Suspected nature of object

Emission nebula

Description

A very faint, irregular, north-south elongated nebula, approximately 4.5'×2.0' in size. 30' North of the emission nebula Stromlo 51.

Date, plate or visually

5 October 2024, plate

15' POSS2 Red

15' DECaPS DR2

352

R.A. / Dec. - Constellation

18:17:38.3 -19°47'30" - Sagittarius

Suspected nature of object

Reflection nebula

Description

7' South of the middle of the nebula IC1284, surrounding the stars TYC6273-00517-1 (south-southeast, mag. 11.2) and TYC6273-00439-1 (north-northwest, mag. 12.3), aligned south-southeast to north-northeast and separated by 34".

Date, plate or visually

11 September 2024, plate

10' POSS1 Blue

10' PanSTARRS

351

R.A. / Dec. - Constellation

18:17:00 -18°42'00" - Sagittarius

Suspected nature of object

Emission nebula

Description

A small and very faint, possibly two-lobed nebula on the western edge of the open cluster Turner 4 and 3' south-southeast of the nebula Sharpless 1-37. 12' South of the middle of the star cloud Messier 24 (IC4715, the "Sagittarius Star Cloud").

Date, plate or visually

6 September 2024, plate

10' POSS2 Red

10' POSS1 Red