Registry · deep sky

NGC 4559

HIIG SIMBAD H2G 671 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 35m 57.64s
Declination: +27° 57′ 35.9″
Galactic l, b: 198.41, 86.47
Magnitude V: 10.01
Parallax: 0.04 mas
Redshift z: 0.0027223
Radial velocity: 815 km/s
Proper motion: 0.19, 0.291 mas/yr
Angular size: 7.233′ × 3.006′

Also known as

23 identifiers

2MASX J12355768+2757351ADBS J123546+2801CAIRNS J123557.75+275736.1Gaia DR2 4010503129426426368Gaia DR3 4010503129426426368IRAS 12334+2814IRAS F12334+2814[KK90] 101LEDA 42002LJHY 105[M98c] 123328.9+281423NGC 4559PSCz Q12334+2814SDSS J123557.64+275735.9UGC 7766UZC J123557.8+275736Z 1233.4+2814Z 159-24[CHM2007] HDC 706 J123557.68+2757351[CHM2007] LDC 867 J123557.68+2757351MCG+05-30-030[RS2000] 188[VDD93] 164

In the same field

within 9 arcmin · wider search

Object	Type	Separation	V
RX J123558+27577	ULX Candidate	13.6″	—
[SST2011] J123557.79+275807.4	ULX Candidate	31.59″	—
SN 1941A	Supernova	42.5″	13.2
NGP 28 99	Star	92.75″	11.89
RX J123551+27561	ULX	120.8″	—
PSN J12355230+2755559	Supernova Candidate	123″	—
AT 2016blu	Variable*	123.1″	—
SDSS J123551.86+275557.0	Galaxy	125.1″	—
SDSS J123627.81+275825.2	QSO	402.7″	—
SDSS J123613.50+275150.3	QSO	404.5″	21.24
2MASS J12355232+2750413	Star	420.5″	—

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/ngc-4559 · Registry entry updated 2026-08-14.