01312-0338 HJ  639

Coord 2000	01312-0338		Discov num	HJ  639		Comp			Coord arcsec 2000	01 31 13.60 -03 37 38.9
Date first	1897		Date last	2015		Obs	10
Pa first	98		Pa last	100		P.A. Now (θ)	100°
Sep first	4.5		Sep last	4.6		Sep. Now (ρ)	4.6"
Mag pri	10.37		Mag sec	11.50		delta mag (ΔM)	1.13		Spectral class
Pri motion ra	-024		Sec motion ra
Pri motion dec	-018		Sec motion dec
Notes

Nature of this double is uncertain.

Precise pa	99.7		Precise sep	4.579		Constellation	Cetus		Tycho2	4685-02088-1
Gaia DR2	17000491648

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
01312-0338	HJ 639		2004	7	101	4.4	10.37	11.50		D	013113.60-033738.9
01312-0338	HJ 639		2010	9	99	3.6	10.37	11.50			013113.60-033738.9
01312-0338	HJ 639		2015	10	100	4.6	10.37	11.50			013113.60-033738.9

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