Registry · deep sky

4C 40.20

Seyfert2 SIMBAD Sy2 70 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: 08h 12m 53.11s
Declination: +40° 18′ 59.9″
Galactic l, b: 180.46, 32.08
Magnitude V: 20.31
Redshift z: 0.55134
Radial velocity: 1.2379e+05 km/s
Proper motion: -3.413, 2.352 mas/yr

Also known as

35 identifiers

4C 40.206C 080931+4028017C 080931.69+402801.0087GB 080930.9+402810B3 0809+404B3VLA 0809+404BWE 0809+4028FIRST J081253.1+401900Gaia DR2 909505538776223232Gaia DR3 909505538776223232GB6 B0809+4028LEDA 2820656MY 080931.2+401849.9MY 080931.2+402752.7NVSS J081253+401900OHIO J 416S4 0809+40S4 0809+404SDSS J081253.09+401859.9SDSS J081253.10+401859.9SDSS J081253.10+401900.0TGSSADR J081253.1+401859TXS 0809+404VRO 40.08.02[VV98] J081253.1+401900WB 0809+4028WISE J081253.11+401900.0WISEA J081253.10+401859.9WN B0809.5+4028[FPD2001b] 0809+404 2[HSN2016] J123.22+40.31[VV2000c] J081253.1+401900[VV2003c] J081253.1+401900[VV2006c] J081253.1+401900[VV2010c] J081253.1+401859

In the same field

within 9 arcmin · wider search

Object	Type	Separation	V
BD+40 2009	Star	138.7″	9.53
2MASS J08125244+4023488	Seyfert1	289.1″	19.9
SDSS J081231.98+402140.2	QSO	289.9″	—
LINEAR 269954	EclBin	319.5″	15.38
LEDA 2165442	Galaxy	376.7″	—
WISE J081220.04+402106.2	BrownD*	400.5″	—
LEDA 2165514	Galaxy	430.6″	—
2MASS J08125332+4027114	Seyfert1	491.5″	18.51

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/4c-40-20 · Registry entry updated 2026-08-14.