18058+2127 STT 341 AB,C (V772 Her)

Coord 2000	18058+2127		Discov num	STT 341		Comp	AB,C		Coord arcsec 2000	18 05 49.72 +21 26 45.6
Date first	1894		Date last	2015		Obs	19
Pa first	173		Pa last	171.1		P.A. Now (θ)	171.1°
Sep first	27.9		Sep last	28.238		Sep. Now (ρ)	28.238"
Mag pri	7.20		Mag sec	10.56		delta mag (ΔM)	3.36		Spectral class	G0V (yellow)
Pri motion ra	-022		Sec motion ra	-027
Pri motion dec	-041		Sec motion dec	-039
Notes	N V (See Notes, Proper motion indicates physical)

rPM=0.114 (< 0.3, Physical double) This double is physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		85723	18 05 50 +21 26 46	STT 341 AB	2021	275	89	0.3	7.39	8.82	1.43	Y
Show	V772 Her	85723	18 05 50 +21 26 46	STT 341 AB,C	2015	19	171	28.2	7.20	10.56	3.36		<===
Show		85723	18 05 50 +21 26 46	STT 341 AB,D	2009	16	99	39.5	7.20	10.48	3.28
Show		85723	18 05 50 +21 26 46	STT 341 AB,E	2018	19	38	66.5	7.20	10.25	3.05
Show		85723	18 05 50 +21 26 46	STT 341 AB,F	2009	9	357	111.6	7.20	11.49	4.29
Show		85723	18 05 50 +21 26 46	STT 341 AB,G	2018	20	239	132.5	7.20	7.64	0.44
Show		85723	18 05 50 +21 26 46	MET 82 AH	2004	1	63	2.6	5.80	14.30	8.50
Show		85723	18 05 50 +21 26 46	MET 82 AI	2004	1	111	6.5	5.80	18.80	13.00
Show		85723	18 05 50 +21 26 46	MET 82 AJ	2015	2	34	13.1	5.80	16.40	10.60

Decuple system
11 estimated visually detectable stars in this system

Var name	V772 Her		Constellation	Hercules		SAO	85723		HIP	88637
Tycho2	1566-00747-1		Gaia DR2	4576326312901654272		HD	165590		BD	BD+21 3302
Distance	39.45		Distance ly	128.69

discov_num	notes	refcode
STT 341	Triple solution with C (HIP 88639). Primary is 0.88d RS CVn-type
	variable or eclipsing binary (V772 Her).	Sod1999
	Combined visual-spectroscopic orbits by Heintz (1982); the lines were	Hei1982b
	separated at periastron passage. Star A is an eclipsing SB1, P = 0.88d	Hei1982e
	(Batten et al. 1979).	Bte1979
	See Baize & Petit (1989) catalog of doubles with variable component.	Baz1989d
	AB: Malkov et al. (2012) derive dynamical, photometric, and
	spectroscopic masses 2.47 +/- 0.51, 2.06, and 2.00 Msun, respectively.	Mlk2012
	AB: A is SB1E, P=0.870d. AB is SB2, P=20.081y	Tok2014d
	AB,C: C is SB2, P=25.763d	Tok2014d

refcode	metd	author	reference
Baz1989d	-	Baize, P. & Petit, M.	1989A&AS...77..497B
Baz1989d		A&AS 77, 497, 1989
Bte1979	-	Batten, A.H. et al.	1979PASP...91..304B
Bte1979		PASP 91, 304, 1979
Hei1982b	orb -	Heintz, W.D.	1982IAUDS..86....1H
Hei1982b		Inf. Circ. 86, 1, 1982
Hei1982e	orb -	Heintz, W.D.	1982PASP...94..705H
Hei1982e		PASP 94, 705, 1982
Mlk2012	not -	Malkov, O.Yu., Tamazian, V.S., Docobo, J.A., & Chulkov, D.A.	2012A&A...546A..69M
Mlk2012		A&A 546, A69, 2012
Sod1999	orb -	Soderhjelm, S.	1999A&A...341..121S
Sod1999		A&A 341, 121, 1999
Tok2014d	E2 -	Tokovinin, A.	2014AJ....147...86T
Tok2014d		AJ 147, 86, 2014

idgroup	discov	author
1	MET	Metchev, S.A., Hillenbrand, L.A., & White, R.J.
13	STT	Struve, O.

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
18058+2127	STT 341	AB,C	2009	17	174	27.2	7.39	9.84	G0V	N D	180549.72+212645.6
18058+2127	STT 341	AB,C	2015	19	171	28.2	7.20	10.56	G0V	NV	180549.72+212645.6

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