20172+1515 CHE 274AB

Coord 2000	20172+1515		Discov num	CHE 274		Comp	AB		Coord arcsec 2000	20 17 14.35 +15 14 49.4
Date first	1910		Date last	2014		Obs	8
Pa first	149		Pa last	148		P.A. Now (θ)	148°
Sep first	27.0		Sep last	27.5		Sep. Now (ρ)	27.5"
Mag pri	12.75		Mag sec	12.86		delta mag (ΔM)	0.11		Spectral class
Pri motion ra	-013		Sec motion ra	+040
Pri motion dec	-011		Sec motion dec	-032
Notes

rPM=1.113 This double is not physical.

Show

name

SAO

coord_2000

discov#

comp

first

last

obs

pa

sep

mag1

mag2

d_mag

orb

current

Show

20172+1515

CHE 274

AB

1910

2014

8

148

27.5

12.75

12.86

0.11

<===

Show

20172+1515

DAM 360

AC

1998

2015

7

21

5.9

12.30

15.00

2.70

Triple system
3 visible stars in this system

Precise pa

147.9

Precise sep

27.504

Constellation

Delphinus

Gaia DR2

94678431616

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20172+1515	CHE 274	AB	2008	5	148	27.6	12.30	12.60		D	201714.35+151449.4
20172+1515	CHE 274	AB	2014	8	148	27.5	12.75	12.86			201714.35+151449.4

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