UPSA Object Registry
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RX J1210.3+3929

BLLac SIMBAD BLL 117 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
12h 10m 26.59s
Declination
+39° 29′ 08.6″
Galactic l, b
154.95, 74.99
Magnitude V
20.3
Parallax
0.7618 mas
Redshift z
0.61698
Radial velocity
1.3391e+05 km/s
Proper motion
0.837, -0.461 mas/yr

Also known as

38 identifiers

1E 1207+39.71E 1207.9+39451REX J121026+3929.11RXS J121022.8+3929262E 1207.9+39452E 26002WHSP J121026.5+3929082XMM J121026.5+3929083HSP J121026.6+3929086W 1207+39W04[A77b] QSO rEQ 1207+3945EXO 1207.9+3945FIRST J121026.6+392909Gaia DR2 1535813514013311360Gaia DR3 1535813514014673024[HB93] 1207+397ILT J121026.87+392910.1[IN88] 1207+397NVSS J121026+392909QSO B1207+39QSO B1207+394QSO B1207+397[R97] NGC 4151 13RBS 1073RX J1210.3+3929SDSS J121026.58+392908.6SDSS J121026.59+392908.6WISE J121026.59+392908.4WISEA J121026.59+392908.4[DGT2001] B1207+3945[MGL2009] BZB J1210+3929[MML2015] 5BZB J1210+3929[VV2000b] J121026.6+392908[VV2003b] J121026.6+392908[VV2006b] J121026.6+392908[VV2010b] J121026.6+392908[VV98b] J121026.6+392908

In the same field

within 9 arcmin · wider search
ObjectTypeSeparationV
4FGL J1210.3+3928 Blazar Candidate 38.42″ —
UI +40-44 HorBranch* 157.4″ 11.68
SN 1974A Supernova 239.4″ 20
NGC 4156 LINER 270.5″ 14.32
LEDA 2151005 Galaxy 272.5″ —
NGC 4151 Seyfert1 295.8″ 11.48
[CTH90] NGC 4151 C04E Radio 295.8″ —
[CTH90] NGC 4151 C01 Radio 295.9″ —
NGC 4151 Group GroupG 295.9″ —
[CTH90] NGC 4151 C05 Radio 296″ —
[CTH90] NGC 4151 C03 Radio 296″ —

Provenance

where this card came from
ArchiveRead at (UTC)Record
Seeded from the bulk archive load; no per-object fetch yet.

Machine-readable: /api/v1/object/rx-j1210-3-3929 · Registry entry updated 2026-08-14.