20177+1504 BPM2091

20^h 17^m 40.38^s +15° 04' 17.8" P.A. 71.00 sep 77.9 mag 14.09,15.32

Coord 2000	20177+1504	Discov num	BPM2091	Comp		Coord arcsec 2000	20 17 40.38 +15 04 17.8
Date first	1965	Date last	2015	Obs	9
Pa first	71	Pa last	71	P.A. Now (θ)	71°
Sep first	77.8	Sep last	77.9	Sep. Now (ρ)	77.9"
Mag pri	14.09	Mag sec	15.32	delta mag (ΔM)	1.23	Spectral class
Pri motion ra	-009	Sec motion ra	+003
Pri motion dec	+001	Sec motion dec	-003
Notes	N V (See Notes, Proper motion indicates physical)

rPM=1.397

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Precise pa	71		Precise sep	77.878		Constellation	Delphinus		SAO	105933
Gaia DR2	1808242018297056128

WDS HISTORIC DATA

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