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00170+1233
HJ 2

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

00170+1233 HJ 2

00^h 16^m 59.54^s +12° 32' 50.5" P.A. 169.00 sep 19.9 mag 10.89,13.12 Sp F0

Coord 2000	00170+1233		Discov num	HJ 2		Comp			Coord arcsec 2000	00 16 59.54 +12 32 50.5
Date first	1825		Date last	2015		Obs	14
Pa first	155		Pa last	169		P.A. Now (θ)	169°
Sep first	15.0		Sep last	19.9		Sep. Now (ρ)	19.9"
Mag pri	10.89		Mag sec	13.12		delta mag (ΔM)	2.23		Spectral class	F0 (yellow-white)
Pri motion ra	+030		Sec motion ra	+005
Pri motion dec	+009		Sec motion dec	+009
Notes

rPM=0.798

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Precise pa	169.3		Precise sep	19.87		Constellation	Pisces		Tycho2	0601-01449-1
Gaia DR2	2755533098787283328

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
00170+1233	HJ 2		1998	6	168	19.9	10.89	13.90	F0	D	001659.54+123250.5
00170+1233	HJ 2		2000	9	168	19.9	10.89	13.90	F0	D	001659.54+123250.5
00170+1233	HJ 2		2010	10	169	19.9	10.89	13.12	F0		001659.54+123250.5
00170+1233	HJ 2		2015	11	169	19.9	10.89	13.12	F0		001659.54+123250.5

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