20127+1806 J  2303AB

Coord 2000	20127+1806		Discov num	J  2303		Comp	AB		Coord arcsec 2000	20 12 46.88 +18 06 17.4
Date first	1895		Date last	2015		Obs	8
Pa first	54		Pa last	50		P.A. Now (θ)	50°
Sep first	26.2		Sep last	23.6		Sep. Now (ρ)	23.6"
Mag pri	10.60		Mag sec	12.00		delta mag (ΔM)	1.4		Spectral class	F8 (yellow-white)
Pri motion ra	+017		Sec motion ra	+015
Pri motion dec	-011		Sec motion dec	-039
Notes	U (Proper motion indicates non-physical)

Visually invisible, K-band or other infrared star rPM=0.672 This double is not physical.

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name

SAO

coord_2000

discov#

comp

first

last

obs

pa

sep

mag1

mag2

d_mag

orb

current

Show

20127+1806

J 2303

AB

1895

2015

8

50

23.6

10.60

12.00

1.40

<===

Show

20127+1806

J 2303

BC

1942

2015

7

322

4.5

12.00

13.00

1.00

Triple system
3 visible stars in this system

Precise pa	49.7		Precise sep	23.643		Constellation	Sagitta		Tycho2	1622-01261-1
Gaia DR2	34055374720

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20127+1806	J 2303	AB	1957	3	50	25.0	10.45	12.60	F8		201246.88+180617.4
20127+1806	J 2303	AB	2000	4	50	24.0	10.60	12.00	F8		201246.88+180617.4
20127+1806	J 2303	AB	2001	5	50	23.9	10.60	12.00	F8		201246.88+180617.4
20127+1806	J 2303	AB	2015	6	49	23.8	10.60	12.00	F8		201246.88+180617.4

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