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Doubles in session

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00271+1852
TDS 19

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

00271+1852 TDS 19

00^h 27^m 08.65^s +18° 51' 46.5" P.A. 138.00 sep 0.9 mag 10.67,10.89

Coord 2000	00271+1852		Discov num	TDS 19		Comp			Coord arcsec 2000	00 27 08.65 +18 51 46.5
Date first	1991		Date last	2015		Obs	7
Pa first	139		Pa last	138		P.A. Now (θ)	138°
Sep first	0.8		Sep last	0.9		Sep. Now (ρ)	0.9"
Mag pri	10.67		Mag sec	10.89		delta mag (ΔM)	0.22		Spectral class
Pri motion ra	+008		Sec motion ra	+008
Pri motion dec	-003		Sec motion dec	-003
Notes

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Precise pa	137.6		Precise sep	0.903		Constellation	Hydra		Tycho2	1183-00992-1
Gaia DR2	2795694822575410048

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
00271+1852	TDS 19		2000	2	132	0.9	10.67	10.89			002708.65+185146.5
00271+1852	TDS 19		2006	3	137	0.9	10.67	10.89			002708.65+185146.5
00271+1852	TDS 19		2010	4	137	0.9	10.67	10.89			002708.65+185146.5
00271+1852	TDS 19		2015	5	137	0.9	10.67	10.89			002708.65+185146.5

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