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00402+4715
BU 257

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

00402+4715 BU 257

00^h 40^m 13.00^s +47° 15' 21.0" P.A. 253.00 sep 0.6 mag 8.06,9.11 Sp G0 dist. 246.31 pc (803.46 l.y.)

Coord 2000	00402+4715		Discov num	BU 257		Comp			Coord arcsec 2000	00 40 13.00 +47 15 21.0
Date first	1876		Date last	2015		Obs	42
Pa first	237		Pa last	253		P.A. Now (θ)	253°
Sep first	0.5		Sep last	0.6		Sep. Now (ρ)	0.6"
Mag pri	8.06		Mag sec	9.11		delta mag (ΔM)	1.05		Spectral class	G0 (yellow)
Pri motion ra	+019		Sec motion ra	+019
Pri motion dec	-003		Sec motion dec	-003
Notes

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Precise pa	253		Precise sep	0.61		Constellation	Cassiopeia		SAO	36564
HIP	3159		Tycho2	3253-01628-1		Gaia DR2	390064188178858880		HD	3700
BD	BD+46 131		Distance	246.31		Distance ly	803.46

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
00402+4715	BU 257		2006	38	249	0.7	8.06	9.11	G0	D	004013.00+471521.0
00402+4715	BU 257		2009	39	249	0.7	8.06	9.11	G0	D	004013.00+471521.0
00402+4715	BU 257		2015	41	253	0.6	8.06	9.11	G0		004013.00+471521.0

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