01546-0218 HDO  55

Coord 2000	01546-0218		Discov num	HDO  55		Comp			Coord arcsec 2000	01 54 33.42 -02 18 04.0
Date first	1895		Date last	2015		Obs	11
Pa first	230		Pa last	228		P.A. Now (θ)	228°
Sep first	10.1		Sep last	10.2		Sep. Now (ρ)	10.2"
Mag pri	10.17		Mag sec	11.30		delta mag (ΔM)	1.13		Spectral class
Pri motion ra	+046		Sec motion ra	+026
Pri motion dec	+010		Sec motion dec	-003
Notes

rPM=0.507 Nature of this double is uncertain.

Precise pa	228.4		Precise sep	10.171		Constellation	Cetus		Tycho2	4686-01185-1
Gaia DR2	01937581184

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
01546-0218	HDO 55		2000	4	229	10.1	10.17	11.30		D	015433.42-021804.0
01546-0218	HDO 55		2010	5	228	10.4	10.17	11.30		D	015433.42-021804.0
01546-0218	HDO 55		2015	7	228	10.2	10.17	11.30			015433.42-021804.0

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