20218+2517 POU4400AC

Coord 2000	20218+2517		Discov num	POU4400		Comp	AC		Coord arcsec 2000	20 21 44.63 +25 17 24.4
Date first	1898		Date last	2015		Obs	10
Pa first	72		Pa last	73		P.A. Now (θ)	73°
Sep first	17.3		Sep last	17.8		Sep. Now (ρ)	17.8"
Mag pri	12.40		Mag sec	14.20		delta mag (ΔM)	1.8		Spectral class
Pri motion ra	+000		Sec motion ra	+024
Pri motion dec	-004		Sec motion dec	-005
Notes

rPM=0.98 This double is not physical.

Show

name

SAO

coord_2000

discov#

comp

first

last

obs

pa

sep

mag1

mag2

d_mag

orb

current

Show

20218+2517

POU4399

AB

1898

2015

10

21

10.7

12.40

13.40

1.00

Show

20218+2517

POU4400

AC

1898

2015

10

73

17.8

12.40

14.20

1.80

<===

Triple system
3 visible stars in this system

Precise pa

72.6

Precise sep

17.825

Constellation

Vulpecula

Gaia DR2

68507566080

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20218+2517	POU4400	AC	1998	2	73	17.8	12.40	14.20		D	202144.63+251724.4
20218+2517	POU4400	AC	2009	3	73	17.7	12.40	14.20		D	202144.63+251724.4
20218+2517	POU4400	AC	2015	6	73	17.8	12.40	14.20			202144.63+251724.4

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