20157+1508 BKO 549AC

Coord 2000	20157+1508		Discov num	BKO 549		Comp	AC		Coord arcsec 2000	20 15 42.96 +15 08 40.1
Date first	1998		Date last	2015		Obs	4
Pa first	111		Pa last	111		P.A. Now (θ)	111°
Sep first	4.7		Sep last	4.8		Sep. Now (ρ)	4.8"
Mag pri	12.54		Mag sec	15.00		delta mag (ΔM)	2.46		Spectral class
Pri motion ra	-094		Sec motion ra
Pri motion dec	+040		Sec motion dec
Notes	N (See Notes)

Nature of this double is uncertain.

Show

name

SAO

coord_2000

discov#

comp

first

last

obs

pa

sep

mag1

mag2

d_mag

orb

current

Show

20157+1508

CHE 249

AB

1910

2018

6

349

22.6

12.54

13.85

1.31

Show

20157+1508

BKO 549

AC

1998

2015

4

111

4.8

12.54

15.00

2.46

<===

Triple system
3 visible stars in this system

Precise pa

110.5

Precise sep

4.806

Constellation

Delphinus

Gaia DR2

40638198656

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20157+1508	BKO 549	AC	2008	1	112	4.9	12.54	15.00		N	201542.96+150840.1
20157+1508	BKO 549	AC	2015	4	111	4.8	12.54	15.00		N	201542.96+150840.1

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