20123+1856 J  3056

Coord 2000	20123+1856		Discov num	J  3056		Comp			Coord arcsec 2000	20 12 22.65 +18 57 33.1
Date first	1944		Date last	2016		Obs	10
Pa first	260		Pa last	256		P.A. Now (θ)	256°
Sep first	5.0		Sep last	6.3		Sep. Now (ρ)	6.3"
Mag pri	12.00		Mag sec	12.20		delta mag (ΔM)	0.2		Spectral class
Pri motion ra	-002		Sec motion ra	-015
Pri motion dec	-002		Sec motion dec	-004
Notes

rPM=0.847 This double is not physical.

Precise pa

256.2

Precise sep

6.262

Constellation

Sagitta

Gaia DR2

83646041984

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20123+1856	J 3056		1944	1	260	5.0	10.20	10.40			201220.00+185600.0
20123+1856	J 3056		2000	3	257	6.3	10.20	10.40		D	201222.65+185733.1
20123+1856	J 3056		2001	4	256	6.2	10.20	10.40		D	201222.65+185733.1
20123+1856	J 3056		2010	4	255	5.5	10.20	10.40			201222.65+185733.1
20123+1856	J 3056		2016	5	256	6.3	12.00	12.20			201222.65+185733.1

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