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13400+1235
HDS1917

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

13400+1235 HDS1917

13^h 39^m 59.57^s +12° 35' 21.6" P.A. 97.00 sep 0.2 mag 9.95,10.63 Sp F9V dist. 116.01 pc (378.42 l.y.)

Coord 2000	13400+1235		Discov num	HDS1917		Comp			Coord arcsec 2000	13 39 59.57 +12 35 21.6
Date first	1991		Date last	2019		Obs	12
Pa first	58		Pa last	97		P.A. Now (θ)	97°
Sep first	0.2		Sep last	0.2		Sep. Now (ρ)	0.2"
Mag pri	9.95		Mag sec	10.63		delta mag (ΔM)	0.68		Spectral class	F9V (yellow-white)
Pri motion ra	+111		Sec motion ra
Pri motion dec	-286		Sec motion dec
Notes

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Precise pa	96.6		Precise sep	0.216		Constellation	Bootes		SAO	100656
HIP	66665		Tycho2	0899-00063-1		Gaia DR2	3740317525792559616		BD	BD+13 2698
Distance	116.01		Distance ly	378.42

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
13400+1235	HDS1917		2004	2	85	0.2	9.95	10.63	F9V		133959.51+123524.2
13400+1235	HDS1917		2007	3	83	0.2	9.95	10.63	F9V	D	133959.51+123524.2
13400+1235	HDS1917		2008	4	84	0.2	9.95	10.63	F9V	D	133959.51+123524.2
13400+1235	HDS1917		2010	5	85	0.2	9.95	10.63	F9V	D	133959.51+123524.2
13400+1235	HDS1917		2012	8	88	0.2	9.95	10.63	F9V		133959.57+123521.6
13400+1235	HDS1917		2016	9	93	0.2	9.95	10.63	F9V		133959.57+123521.6
13400+1235	HDS1917		2019	10	97	0.2	9.95	10.63	F9V		133959.57+123521.6

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