Registry · deep sky

* alf Sge

Star SIMBAD * G1II 213 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: 19h 40m 05.79s
Declination: +18° 00′ 50.0″
Galactic l, b: 54.454, -2.14
Magnitude V: 4.38
Parallax: 7.6353 mas
Redshift z: 5.561e-06
Radial velocity: 1.667 km/s
Proper motion: 15.08, -20.29 mas/yr

Also known as

42 identifiers

2MASS J19400578+1800500* 5 SgeADS 12766 AAG+17 2028* alf SgeBD+17 4042CCDM J19401+1801ACSI+17 4042 1Gaia DR2 1824277055360974720Gaia DR3 1824277055360974720GC 27215GCRV 12054GEN# +1.00185758GSC 01606-02341HD 185758HIC 96757HIP 96757HR 7479IDS 19356+1747 AIRC +20426** J 121AJP11 3125PLX 4619PLX 4619.00PPM 136737ROT 2828SAO 105120SKY# 36739TD1 25199TIC 377221903TYC 1606-2341-1UBV 16710UBV M 24018uvby98 100185758WDS J19401+1801AWEB 16974WISE J194005.81+180049.6WISEA J194005.82+180049.7YZ 17 7607AKARI-IRC-V1 J1940057+180049[HFE83] 1310Sham

In the same field

within 9 arcmin · wider search

Object	Type	Separation	V
ATO J294.9590+18.0177	EclBin	223.3″	—
LS II +17 11	Star	235.2″	12.28
IRAS 19382+1756	LongPeriodV*	371.6″	—
IRAS 19375+1759	LongPeriodV*	418″	—
HD 350318	Star	419.3″	7.32
V* DN Sge	RRLyrae Candidate	424.3″	—
ZTF J193959.20+180823.8	EclBin	463.4″	—

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/alf-sge · Registry entry updated 2026-08-14.