Registry · deep sky

ACO 2255

ClG SIMBAD ClG 607 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: 17h 12m 55.99s
Declination: +64° 04′ 05.9″
Galactic l, b: 93.937, 34.91
Redshift z: 0.0801
Radial velocity: 23,054 km/s
Angular size: 10′ × 10′

Also known as

33 identifiers

1ES 1712+64.11H 1712+6411RXS J171250.4+6403522E 1712.5+64072E 38662MAXI J1712+641ACO 2255BAX 258.1294+64.0926ClG 1712.2+6409[F81] 370FR 107MCXC J1712.7+6403NSC J171252+640307PLCKESZ G093.91+34.90PSZ1 G093.93+34.92PSZ2 G093.92+34.92PSZRX G093.94+34.92RBS 1630RX J1712.5+6403RX J1712.8+6403RXC J1712.7+6403SRGA J171256.0+640406XSS J17115+6426[AWK2020] 4[B2017] 2476[PBR2005] RO340SDSS-C4 3002SDSS-C4-DR3 3004[SPD2011] 174[WHL2009] J171129.6+635157[WHL2009] J171228.8+640338[WHL2012] J171228.8+640339[YSS2008] 1

In the same field

within 9 arcmin · wider search

Object	Type	Separation	V
2MASX J17125115+6404235	GtowardsCl	35.91″	—
[YZJ2003] 2- 25	Galaxy	63.09″	—
2MASX J17125008+6403105	GtowardsCl	67.72″	—
LEDA 59855	RadioG	69.88″	—
4CT 64.20.1	Radio	84.16″	—
SDSS J171243.59+640312.7	Galaxy	97.09″	—
2MASX J17124109+6404215	GtowardsCl	99.31″	—
SDSS J171255.42+640156.6	Galaxy	129.3″	—
ZwCl 1710.4+6401 B	BrightestCG	138.7″	—
SDSS J171255.40+640145.3	Galaxy	140.6″	—
2MASX J17131669+6403198	Galaxy	143.1″	—

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/aco-2255 · Registry entry updated 2026-08-14.