00231+0816 HDO  15

Coord 2000	00231+0816		Discov num	HDO  15		Comp			Coord arcsec 2000	00 23 04.81 +08 15 53.7
Date first	1869		Date last	2015		Obs	14
Pa first	269		Pa last	270		P.A. Now (θ)	270°
Sep first	28.5		Sep last	23.6		Sep. Now (ρ)	23.6"
Mag pri	10.83		Mag sec	12.72		delta mag (ΔM)	1.89		Spectral class	G0 (yellow)
Pri motion ra	-030		Sec motion ra	-011
Pri motion dec	-039		Sec motion dec	-038
Notes

rPM=0.387 Nature of this double is uncertain.

Precise pa	270.1		Precise sep	23.602		Constellation	Pisces		Tycho2	0596-00976-1
Gaia DR2	2749113600148524416

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
00231+0816	HDO 15		2000	11	270	23.8	10.83	11.80	G0	D	002304.81+081553.7
00231+0816	HDO 15		2010	13	270	23.7	10.83	12.72	G0		002304.81+081553.7
00231+0816	HDO 15		2015	14	270	23.6	10.83	12.72	G0		002304.81+081553.7

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