08523+0804 TOK 22

Coord 2000	08523+0804		Discov num	TOK  22		Comp			Coord arcsec 2000	08 52 16.39 +08 03 46.5
Date first	2004		Date last	2018		Obs	8
Pa first	334		Pa last	341.4		P.A. Now (θ)	341.4°
Sep first	3.4		Sep last	3.183		Sep. Now (ρ)	3.183"
Mag pri	5.00		Mag sec	9.80		delta mag (ΔM)	4.8		Spectral class	G0V (yellow)
Pri motion ra	+153		Sec motion ra
Pri motion dec	-235		Sec motion dec
Notes	N K (See Notes, 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.

Constellation

Cancer

Gaia DR2

596878550087942528

discov_num	notes	refcode
TOK 22	Estimated period of visual pair 600y.	Tok2006
	A is SB1, P=10.25d, Griffin & Fuhrmann 2013 MNRAS, 430, 1390). B is
	SB2 (P~10d). Fuhrmann (2005 MNRAS, 361, 803) gave Mass(Aa)=0.96Msun,
	age 8.2Gyr, Ab is WD? However, Griffin & Fuhrman said P(Aa,Ab)=10d
	and tertiary. Ab not a WD. Tok2006: dK=(AB)=4.28 => Mass(Ba)=0.23

refcode	metd	author	reference
Tok2006	A j	Tokovinin, A., Thomas, S., Sterzik, M., & Udry, S.	2006A&A...450..681T
Tok2006	+E2	A&A 450, 681, 2006

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
08523+0804	TOK 22		2004	1	334	3.4	6.59			N D	085216.30+080348.6
08523+0804	TOK 22		2015	2	340	3.2	5.00	9.80	G0V	N K	085216.39+080346.5
08523+0804	TOK 22		2018	4	341	3.2	5.00	9.80	G0V	N K	085216.39+080346.5

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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

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS