20457+1537 BPM 2255

20^h 45^m 42.83^s +15° 36' 33.8" P.A. 85.00 sep 72.3 mag 10.49,15.03 Sp G5

Coord 2000	20457+1537	Discov num	BPM2255	Comp		Coord arcsec 2000	20 45 42.83 +15 36 33.8
Date first	1980	Date last	2015	Obs	8
Pa first	86	Pa last	85.2	P.A. Now (θ)	85.2°
Sep first	71.7	Sep last	72.303	Sep. Now (ρ)	72.303"
Mag pri	10.49	Mag sec	15.03	delta mag (ΔM)	4.54	Spectral class	G5 (yellow)
Pri motion ra	-012	Sec motion ra	-007
Pri motion dec	-015	Sec motion dec	-010
Notes	N V (See Notes, Proper motion indicates physical)

rPM=0.368

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Delphinus

Tycho2

1634-01278-1

Gaia DR2

1762911937015980288