18093+0909 RUC 24 AB

Coord 2000	18093+0909		Discov num	RUC  24		Comp	AB		Coord arcsec 2000	18 09 21.26 +09 09 03.6
Date first	1998		Date last	2016		Obs	3
Pa first	8		Pa last	5.8		P.A. Now (θ)	5.8°
Sep first	8.2		Sep last	8.335		Sep. Now (ρ)	8.335"
Mag pri	7.57		Mag sec	12.37		delta mag (ΔM)	4.8		Spectral class	F8V (yellow-white)
Pri motion ra	-033		Sec motion ra
Pri motion dec	+003		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.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			18 09 21 +09 09 04	RUC 24 AB	2016	3	6	8.3	7.57	12.37	4.80		<===
Show			18 09 21 +09 09 04	RUC 24 AC	2015	9	36	22.7	9.10	13.00	3.90

Triple system
3 estimated visually detectable stars in this system

Constellation

Ophiuchus

Gaia DR2

4481606508598024064

discov_num	notes	refcode
RUC 24	Primary is V839 Oph.

refcode	metd	author	reference
Ruc2007	A j	Rucinski, S.M., Pribulla, T., & van Kerkwijk, M.H.	2007AJ....134.2353R
Ruc2007		AJ 134, 2353, 2007
Ruc2010A	C u	Rucinski, S.M.	2010AJ....139.2258B
Ruc2010A		cited by Broz et al. (Boz2010)

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
18093+0909	RUC 24	AB	1998	1	8	8.2	8.98		F8V	N D	180921.26+090903.6
18093+0909	RUC 24	AB	1999	2	6	7.6	8.98		F8V	N D	180921.26+090903.6
18093+0909	RUC 24	AB	2016	3	6	8.3	7.57	12.37	F8V	N K	180921.26+090903.6

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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