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Doubles in session

Current system

20196-0632
LDS4837

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

20196-0632 LDS4837

20^h 19^m 39.72^s -06° 32' 10.3" P.A. 145.00 sep 28.9 mag 17.60,17.90

Coord 2000	20196-0632		Discov num	LDS4837		Comp			Coord arcsec 2000	20 19 39.72 -06 32 10.3
Date first	1960		Date last	2015		Obs	9
Pa first	146		Pa last	145		P.A. Now (θ)	145°
Sep first	29.0		Sep last	28.9		Sep. Now (ρ)	28.9"
Mag pri	17.60		Mag sec	17.90		delta mag (ΔM)	0.3		Spectral class
Pri motion ra	-087		Sec motion ra
Pri motion dec	-054		Sec motion dec
Notes

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Precise pa

145.3

Precise sep

28.858

Constellation

Aquila

Gaia DR2

4216439870605533184

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20196-0632	LDS4837		1999	2	145	28.8	17.60	17.90		D	201939.72-063210.3
20196-0632	LDS4837		2000	4	145	28.8	17.60	17.90			201939.72-063210.3
20196-0632	LDS4837		2010	5	145	28.9	17.60	17.90			201939.72-063210.3
20196-0632	LDS4837		2015	6	145	28.9	17.60	17.90			201939.72-063210.3

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