20307+1233 BPM2177

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)

Visually invisible, K-band or other infrared star rPM=0.112 (< 0.3, Physical double) This double is physical.

Precise pa

219.6

Precise sep

71.042

Constellation

Delphinus

Gaia DR2

93260883072

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20307+1233	BPM2177		2000	2	220	70.9	15.16	15.86		NV	203042.84+123321.0
20307+1233	BPM2177		2001	3	220	70.9	15.16	15.86		NV	203042.84+123321.0
20307+1233	BPM2177		2010	4	219	70.3	15.16	15.86		NV	203042.84+123321.0
20307+1233	BPM2177		2015	4	220	71.0	15.16	15.86		NV	203042.84+123321.0

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