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00137+0635
BU 998

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

00137+0635 BU 998

00^h 13^m 40.52^s +06° 34' 49.2" P.A. 108.00 sep 1.3 mag 9.30,9.54 Sp F2 dist. 212.77 pc (694.06 l.y.)

Coord 2000	00137+0635		Discov num	BU 998		Comp			Coord arcsec 2000	00 13 40.52 +06 34 49.2
Date first	1881		Date last	2017		Obs	59
Pa first	115		Pa last	108		P.A. Now (θ)	108°
Sep first	1.0		Sep last	1.3		Sep. Now (ρ)	1.3"
Mag pri	9.30		Mag sec	9.54		delta mag (ΔM)	0.24		Spectral class	F2 (yellow-white)
Pri motion ra	+027		Sec motion ra	+027
Pri motion dec	-012		Sec motion dec	-012
Notes

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Precise pa	107.7		Precise sep	1.275		Constellation	Hydra		HIP	1095
Tycho2	0008-00385-1		Gaia DR2	2742598890674362752		HD	921		BD	BD+05 18
Distance	212.77		Distance ly	694.06

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
00137+0635	BU 998		2006	57	108	1.3	9.30	9.54	F2	D	001340.52+063449.2
00137+0635	BU 998		2016	55	108	1.1	9.30	9.54	F2		001340.52+063449.2
00137+0635	BU 998		2017	57	108	1.3	9.30	9.54	F2		001340.52+063449.2

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