20311+1648 ROE  14AB

Coord 2000	20311+1648		Discov num	ROE  14		Comp	AB		Coord arcsec 2000	20 31 03.18 +16 48 41.3
Date first	1909		Date last	2015		Obs	10
Pa first	259		Pa last	262		P.A. Now (θ)	262°
Sep first	7.0		Sep last	7.0		Sep. Now (ρ)	7"
Mag pri	11.50		Mag sec	12.60		delta mag (ΔM)	1.1		Spectral class
Pri motion ra	+020		Sec motion ra	-008
Pri motion dec	-005		Sec motion dec	+008
Notes

rPM=1.497 This double is not physical.

Show

name

SAO

coord_2000

discov#

comp

first

last

obs

pa

sep

mag1

mag2

d_mag

orb

current

Show

20311+1648

ROE 14

AB

1909

2015

10

262

7.0

11.50

12.60

1.10

<===

Show

20311+1648

J 563

BC

1911

2015

9

215

5.1

12.60

13.20

0.60

Triple system
3 visible stars in this system

Precise pa

262.3

Precise sep

7.043

Constellation

Delphinus

Gaia DR2

98760871680

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20311+1648	ROE 14	AB	2000	5	263	7.0	11.00	12.00		D	203103.18+164841.3
20311+1648	ROE 14	AB	2001	6	263	7.1	11.00	12.00		D	203103.18+164841.3
20311+1648	ROE 14	AB	2015	7	262	7.0	11.50	12.60			203103.18+164841.3

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