20307+1233 BPM2177

20^h 30^m 42.84^s +12° 33' 21.0" P.A. 220.00 sep 71.0 mag 15.16,15.86

Coord 2000	20307+1233	Discov num	BPM2177	Comp		Coord arcsec 2000	20 30 42.84 +12 33 21.0
Date first	1996	Date last	2015	Obs	7
Pa first	220	Pa last	220	P.A. Now (θ)	220°
Sep first	70.7	Sep last	71.0	Sep. Now (ρ)	71"
Mag pri	15.16	Mag sec	15.86	delta mag (ΔM)	0.7	Spectral class
Pri motion ra	+017	Sec motion ra	+020
Pri motion dec	+019	Sec motion dec	+020
Notes	N V (See Notes, Proper motion indicates physical)

rPM=0.112 (< 0.3, Physical double)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Precise pa

219.6

Precise sep

71.042

Constellation

Delphinus

Gaia DR2

1755777893260883072

WDS HISTORIC DATA

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