21176+6818 CON 40 CD

Coord 2000	21176+6818		Discov num	CON  40		Comp	CD		Coord arcsec 2000	21 17 38.69 +68 17 33.4
Date first	2004		Date last	2004		Obs	1
Pa first	69		Pa last	68.5		P.A. Now (θ)	68.5°
Sep first	1.0		Sep last	1.01		Sep. Now (ρ)	1.01"
Mag pri	10.50		Mag sec			delta mag (ΔM)			Spectral class
Pri motion ra	+018		Sec motion ra
Pri motion dec	-009		Sec motion dec
Notes	K (K-band or other infrared magnitudes)

Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes Nature of this double is uncertain.

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name

SAO

coord

wds_name

last

obs

pa

sep

mag1

mag2

d_mag

orb

current

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21 17 39 +68 17 33

YUN 1 AB

2004

2

92

9.0

10.49

13.08

2.59

Show

21 17 39 +68 17 33

CON 40 CD

2004

1

69

1.0

10.50

<===

Quadruple system
4 estimated visually detectable stars in this system

Constellation

Cepheus

No records found.

refcode	metd	author	reference
Con2008	Ci j	Connelley, M.S., Reipurth, B., & Tokunaga, A.T.	2008AJ....135.2496C
Con2008		AJ 135, 2496, 2008
Con2008		(IR duplicity survey among YSOs. Note that primary magnitudes in summary lines
Con2008		are K-band magnitudes of IRAS objects containing these pairs, so are in general
Con2008		severe overestimates of these objects' brightnesses)
Con2008b	-	Connelley, M.S., Reipurth, B., & Tokunaga, A.T.	2008AJ....135.2526C
Con2008b		AJ 135, 2526, 2008 (statistical analysis; no data)
Yun1994	Ci -	Yun, J. & Clemens, D.	1994ApJS...92..145Y
Yun1994		ApJS 92, 145, 1994 (duplicity noted but no relative astrometry)

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
21176+6818	CON 40	CD	2004	1	69	1.0	10.50			DK	211738.69+681733.4

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No records found.


No records found.

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Radius: auto 0.5" 0.8" 1" 2" 3" 5" 10" 15" 20" 25" 30" 35" 40" 45" 50" 55" 1' 2' 3' 4' 5' 6' 7' 8' 9' 10' 15' 20' 30' 40' 50' 1° 2° 4° 5° 8° Components only

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