05272+1758 STT 107 AC

Coord 2000	05272+1758		Discov num	STT 107		Comp	AC		Coord arcsec 2000	05 27 10.09 +17 57 44.0
Date first	1899		Date last	2016		Obs	7
Pa first	341		Pa last	344.6		P.A. Now (θ)	344.6°
Sep first	10.0		Sep last	9.914		Sep. Now (ρ)	9.914"
Mag pri	5.39		Mag sec	11.80		delta mag (ΔM)	6.41		Spectral class	B5V (blue-white)
Pri motion ra	+008		Sec motion ra
Pri motion dec	-021		Sec motion dec
Notes	N (See Notes)

Nature of this double is uncertain.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		94554	05 27 10 +17 57 44	MCA 19 Aa,Ab	2021	32	92	0.1	5.80	6.80	1.00	Y
Show	115 Tau	94554	05 27 10 +17 57 44	STT 107 AB	2016	17	305	10.1	5.39	11.10	5.71
Show		94554	05 27 10 +17 57 44	STT 107 AC	2016	7	345	9.9	5.39	11.80	6.41		<===
Show			05 27 10 +17 57 50	STT 107 BC	2015	7	57	7.0	11.10	11.80	0.70

Quadruple system
3 estimated visually detectable stars in this system

Constellation	Taurus		SAO	94554		HIP	25499		Tycho2	1300-02224-1
Gaia DR2	3400339253355935744		HD	35671		HR	1808		GC	6714
ADS	4038		BD	BD+17 928		Flamsteed	115 Tauri		Flamsteed name	115 Tau
FK5	1148		Distance	168.35		Distance ly	549.16

discov_num	notes	refcode
MCA 19	115 Tau. A is an occultation binary which has been resolved by
	speckle interferometry.
	First detected as an occultation binary by Africano.	Afr1978
	1982.7551: All archival data for this system were reprocessed using
	more powerful algorithms than earlier available, resulting in four new
	unresolved measures as well as the new 1991 measurement. In addition,
	new rho and theta values have been determined for the observations	McA1989
	originally published from 1986.9-1988.3 (McAlister et al. 1989),	McA1990
	1988.7-1989.2 (McAlister et al. 1990), and 1990.3--1990.8 (Hartkopf	Hrt1992b
	et al. 1992). A preliminary orbit gives a period of ~15.3 years and
	a semi-major axis of 0".080.	Hrt1994
	1988.2518: This date was incorrectly given as 1988.2490 in McAlister
	et al. (1989).	McA1989
	Aa,Ab: Malkov et al. (2012) derive dynamical, photometric, and
	spectroscopic masses 6.46 +/- 2.35, 8.01, and 4.79 Msun, respectively.	Mlk2012

refcode	metd	author	reference
Afr1978	O j	Africano, J.L., Evans, D., Fekel, F., Smith, B., & Morgan, C.	1978AJ.....83.1100A
Afr1978		AJ 83, 1100, 1978
Hrt1992b	Sc j	Hartkopf, W.I., McAlister, H.A., & Franz, O.G.	1992AJ....104..810H
Hrt1992b		AJ 104, 810, 1992
Hrt1994	Sc j	Hartkopf, W.I., McAlister,H.A., Mason, B.D., Barry, D.J., Turner, N., & Fu, H.-H.	1994AJ....108.2299H
Hrt1994		AJ 108, 2299, 1994
McA1989	Sc j	McAlister, H.A., Hartkopf, W.I., Sowell, J.R., Dombrowski, E.G., & Franz, O.G.	1989AJ.....97..510M
McA1989		AJ 97, 510, 1989
McA1990	Sc j	McAlister, H.A., Hartkopf, & Franz, O.G.	1990AJ.....99..965M
McA1990		AJ 99, 965, 1990
Mlk2012	not -	Malkov, O.Yu., Tamazian, V.S., Docobo, J.A., & Chulkov, D.A.	2012A&A...546A..69M
Mlk2012		A&A 546, A69, 2012

idgroup	discov	author
1	STT	Struve, O.

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
05272+1758	STT 107	AC	1998	5	346	10.1	5.42	11.80	B5V	D	052710.09+175744.2
05272+1758	STT 107	AC	2015	6	347	10.0	5.39	11.80	B5V	N	052710.09+175744.0
05272+1758	STT 107	AC	2016	7	345	9.9	5.39	11.80	B5V	N	052710.09+175744.0

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