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00304+7232
HJ 1973

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

00304+7232 HJ 1973

00^h 30^m 26.28^s +72° 31' 51.7" P.A. 38.00 sep 18.0 mag 9.19,12.30 Sp A0 dist. 366.3 pc (1194.87 l.y.)

Coord 2000	00304+7232		Discov num	HJ 1973		Comp			Coord arcsec 2000	00 30 26.28 +72 31 51.7
Date first	1831		Date last	2015		Obs	11
Pa first	45		Pa last	38		P.A. Now (θ)	38°
Sep first	16.0		Sep last	18.0		Sep. Now (ρ)	18"
Mag pri	9.19		Mag sec	12.30		delta mag (ΔM)	3.11		Spectral class	A0 (white)
Pri motion ra	+015		Sec motion ra	-004
Pri motion dec	-007		Sec motion dec	-001
Notes

rPM=1.204

This double is not physical.

OTHER CATALOGS AND DESIGNATIONS

Precise pa	37.8		Precise sep	18.028		Constellation	Cassiopeia		SAO	4129
HIP	2385		Tycho2	4303-02069-1		Gaia DR2	536869370111119232		HD	2590
BD	BD+71 19		Distance	366.3		Distance ly	1194.87

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
00304+7232	HJ 1973		2000	5	39	18.1	8.60	12.30	A0	D	003026.28+723151.7
00304+7232	HJ 1973		2003	6	38	18.1	8.60	12.30	A0	D	003026.28+723151.7
00304+7232	HJ 1973		2010	7	38	18.0	9.19	12.30	A0		003026.28+723151.7
00304+7232	HJ 1973		2015	8	38	18.0	9.19	12.30	A0		003026.28+723151.7

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