Registry · deep sky

[L92b] Mark A

HotSubdwarf SIMBAD HS* sdO 75 papers

harvesting The full record is being pulled from the archives right now — measurement tables, the Gaia row, catalogue photometry. This page will fill itself in.

Right ascension: 20h 43m 59.23s
Declination: −10° 47′ 41.7″
Galactic l, b: 35.875, -29.85
Magnitude V: 13.26
Parallax: 2.525 mas
Proper motion: 25.35, 6.557 mas/yr

Also known as

10 identifiers

2MASS J20435924-1047417Gaia DR2 6902139575705449344Gaia DR3 6902139575705449344GSC 05760-01664[L92b] Mark ATIC 51528892UCAC2 28113783Mark AMrk 509CMrk A

In the same field

within 9 arcmin · wider search

Object	Type	Separation	V
UCAC2 28113781	Star	31.56″	15.91
[L92b] Mark A3	Star	141″	14.82
UCAC2 28113774	Star	144.5″	14.54
ATO J310.9509-10.7943	RRLyrae	161.9″	17.49
Mrk 509	Seyfert1	300.1″	13.12
HD 197399	Star	357.8″	9.66

Provenance

where this card came from

Archive	Read at (UTC)	Record
Seeded from the bulk archive load; no per-object fetch yet.

Machine-readable: /api/v1/object/l92b-mark-a · Registry entry updated 2026-08-14.