21140+3755 SEI 1457

21^h 13^m 59.80^s +37° 54' 34.5" P.A. 28.00 sep 10.6 mag 11.35,11.36

Coord 2000	21140+3755	Discov num	SEI1457	Comp		Coord arcsec 2000	21 13 59.80 +37 54 34.5
Date first	1895	Date last	2023	Obs	15
Pa first	27	Pa last	27.5	P.A. Now (θ)	27.5°
Sep first	10.4	Sep last	10.647	Sep. Now (ρ)	10.647"
Mag pri	11.35	Mag sec	11.36	delta mag (ΔM)	0.01	Spectral class
Pri motion ra	-009	Sec motion ra	-006
Pri motion dec	-007	Sec motion dec	-007
Notes	N S (See Notes, Parallax indidates non-physical)

rPM=0.263 (< 0.3, Physical double)

This double is not physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Cygnus

Gaia DR2

1868899978861957760