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20101-0225
J 2297

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

20101-0225 J 2297

20^h 09^m 54.57^s -02° 25' 06.2" P.A. 207.00 sep 7.4 mag 10.90,12.90

Coord 2000	20101-0225		Discov num	J 2297		Comp			Coord arcsec 2000	20 09 54.57 -02 25 06.2
Date first	1942		Date last	2015		Obs	8
Pa first	200		Pa last	207		P.A. Now (θ)	207°
Sep first	4.0		Sep last	7.4		Sep. Now (ρ)	7.4"
Mag pri	10.90		Mag sec	12.90		delta mag (ΔM)	2		Spectral class
Pri motion ra	+003		Sec motion ra
Pri motion dec	-014		Sec motion dec
Notes

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Precise pa	207.1		Precise sep	7.356		Constellation	Aquila		Tycho2	5165-01518-1
Gaia DR2	4223484201086885376

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20101-0225	J 2297		1942	1	200	4.0	10.90	12.90			201001.04-022534.1
20101-0225	J 2297		2000	4	207	7.1	10.90	12.90			200954.57-022506.2
20101-0225	J 2297		2010	6	206	7.1	10.90	12.90			200954.57-022506.2
20101-0225	J 2297		2015	7	207	7.4	10.90	12.90			200954.57-022506.2

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