You're not logged.

Login

Filter only those doubles you can observe? Yes, you can!
Register here

Search

Actions

Advanced Search
Go to Simbad
New report
New measure
Login

Computed Lists

Populars
Latest Populars
Doubles in session

Current system

09312+0908
CHE 139

Selections

Full WDS
Binocular doubles
Binary Systems
Triple Systems
Quadruple Systems
Multiple Systems
Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

09312+0908 CHE 139

09^h 31^m 17.02^s +09° 07' 40.3" P.A. 56.00 sep 12.2 mag 12.80,13.00

Coord 2000	09312+0908		Discov num	CHE 139		Comp			Coord arcsec 2000	09 31 17.02 +09 07 40.3
Date first	1911		Date last	2015		Obs	10
Pa first	69		Pa last	56		P.A. Now (θ)	56°
Sep first	13.8		Sep last	12.2		Sep. Now (ρ)	12.2"
Mag pri	12.80		Mag sec	13.00		delta mag (ΔM)	0.2		Spectral class
Pri motion ra	+007		Sec motion ra	-015
Pri motion dec	-009		Sec motion dec	+001
Notes

rPM=1.608

This double is not physical.

OTHER CATALOGS AND DESIGNATIONS

Precise pa

56.2

Precise sep

12.242

Constellation

Leo

Gaia DR2

588989107481945600

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
09312+0908	CHE 139		2002	3	67	12.4	12.80	13.00			093117.02+090740.3
09312+0908	CHE 139		2014	6	58	12.4	12.80	13.00			093117.02+090740.3
09312+0908	CHE 139		2015	8	56	12.2	12.80	13.00			093117.02+090740.3

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