20340+4118 CAN 68 AD

Coord 2000	20340+4118		Discov num	CAN  68		Comp	AD		Coord arcsec 2000	20 33 59.53 +41 17 35.5
Date first	1998		Date last	2008		Obs	2
Pa first	284		Pa last	285.4		P.A. Now (θ)	285.4°
Sep first	7.2		Sep last	7.39		Sep. Now (ρ)	7.39"
Mag pri	7.90		Mag sec	13.40		delta mag (ΔM)	5.5		Spectral class	O9.5V (blue)
Pri motion ra	+001		Sec motion ra
Pri motion dec	+001		Sec motion dec
Notes	N V K (See Notes, Proper motion indicates physical, 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 This double is physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			20 33 60 +41 17 36	CAN 10 Aa,Ab	2007	2	226	0.0	12.70	13.60	0.90
Show			20 33 60 +41 17 36	CAN 68 AB	2008	1	48	0.8	7.90	12.70	4.80
Show			20 33 60 +41 17 36	CAN 68 AC	2008	1	315	7.1	7.90	16.80	8.90
Show			20 33 60 +41 17 36	CAN 68 AD	2008	2	285	7.4	7.90	13.40	5.50		<===
Show			20 33 60 +41 17 36	CAN 68 AE	2008	1	311	8.9	7.90	15.80	7.90
Show			20 33 60 +41 17 36	CAN 68 AF	2008	1	235	9.4	7.90	15.80	7.90
Show			20 33 60 +41 17 36	CAN 68 AG	2014	2	232	10.9	7.90	16.30	8.40
Show			20 33 60 +41 17 36	CAN 68 AH	2014	3	31	11.0	7.90	13.90	6.00

Ninefold system
8 estimated visually detectable stars in this system

Constellation

Cygnus

discov_num	notes	refcode
CAN 10	[MT91] 696. Primary is an O9.5 eclipsing, double-lined SB in the
	Cygnus OB2 Association. Ambiguity in the position of the secondary
	along one FGS coordinate leads to two possible position angles for the
	measure.	CaN2014

refcode	metd	author	reference
CaN2014	Hf j	Caballero-Nieves, S.M., Nelan, E.P., Gies, D.R., Wallace, D.J., DeGioia-Eastwood,	2014AJ....147...40C
CaN2014		K., Herrero, A., Jao, W.-J., Mason, B.D., Massey, P., Moffat, A.F., & Walborn, N.
CaN2014		AJ 147, 40, 2014

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20340+4118	CAN 68	AD	2008	2	285	7.4	7.90	13.40	O9.5V	NV K	203359.53+411735.5

If you need more information about this double, apply for a data request form to the WDS.

No records found.


No records found.

Click on the map to see the double of your interest. Pass over with the mouse cursor to display the catalog designation.

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

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS