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19479+1002
AG 391

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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

19479+1002 AG 391

19^h 47^m 56.98^s +10° 02' 23.4" P.A. 297.00 sep 52.3 mag 7.72,9.19 Sp K5 dist. 272.48 pc (888.83 l.y.)

Coord 2000	19479+1002		Discov num	AG 391		Comp			Coord arcsec 2000	19 47 56.98 +10 02 23.4
Date first	1906		Date last	2015		Obs	25
Pa first	294		Pa last	297		P.A. Now (θ)	297°
Sep first	49.3		Sep last	52.3		Sep. Now (ρ)	52.3"
Mag pri	7.72		Mag sec	9.19		delta mag (ΔM)	1.47		Spectral class	K5 (yellow-orange)
Pri motion ra	-007		Sec motion ra	-024
Pri motion dec	+002		Sec motion dec	+032
Notes	N Y (See Notes, Parallax indicates components are non-physical)

rPM=0.862

This double is not physical.

OTHER CATALOGS AND DESIGNATIONS

Precise pa	296.8		Precise sep	52.257		Constellation	Aquila		SAO	125080
HIP	97414		Tycho2	1062-00448-1		Gaia DR2	4301962908691193728		HD	187130
BD	BD+09 4264		Distance	272.48		Distance ly	888.83

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
19479+1002	AG 391		1999	16	296	51.9	7.72	9.19	K5	NYD	194756.98+100223.4
19479+1002	AG 391		2009	17	296	52.3	7.72	9.19	K5	NYD	194756.98+100223.4
19479+1002	AG 391		2014	20	296	52.1	7.72	9.19	K5	NY	194756.98+100223.4
19479+1002	AG 391		2015	22	297	52.3	7.72	9.19	K5	NY	194756.98+100223.4

If you need more information about this double, apply for a data request form to the WDS.