20311+4203 CAN 2 Aa,Ab

Coord 2000	20311+4203		Discov num	CAN   2		Comp	Aa,Ab		Coord arcsec 2000	20 31 08.38 +42 02 42.3
Date first	2006		Date last	2008		Obs	3
Pa first	276		Pa last	258.3		P.A. Now (θ)	258.3°
Sep first	0.4		Sep last	0.34		Sep. Now (ρ)	0.34"
Mag pri	11.80		Mag sec	15.00		delta mag (ΔM)	3.2		Spectral class	O9.7II (blue)
Pri motion ra	-003		Sec motion ra
Pri motion dec	-001		Sec motion dec
Notes	V (Proper motion indicates physical)

This double is physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			20 31 08 +42 02 42	CAN 2 Aa,Ab	2008	3	258	0.3	11.80	15.00	3.20		<===
Show			20 31 08 +42 02 42	CAN 25 AB	2008	2	221	4.2	7.00	15.40	8.40

Triple system
2 estimated visually detectable stars in this system

Constellation

Cygnus

No records found.

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
CaN2020	A j	Caballero-Nieves, S.M., Gies, D.R., Baines, E.K., Bouchez, A.H., Dekany, R.G.,	2020AJ....160..115C
CaN2020		Goodwin, S.P., Rickman, E.L., Roberts, L.C., Jr., Taggart, K., ten Brummelaar,
CaN2020		T.A. & Turner, N.H.
CaN2020		AJ 160, 115, 2020

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20311+4203	CAN 2	Aa,Ab	2008	3	258	0.3	11.80	15.00	O9.7II	V	203108.38+420242.3

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