02291+6724 STF 262 AD

Coord 2000	02291+6724		Discov num	STF 262		Comp	AD		Coord arcsec 2000	02 29 03.96 +67 24 08.7
Date first	1892		Date last	2016		Obs	10
Pa first	58		Pa last	59.8		P.A. Now (θ)	59.8°
Sep first	209.0		Sep last	210.91		Sep. Now (ρ)	210.91"
Mag pri	4.63		Mag sec	8.48		delta mag (ΔM)	3.85		Spectral class	A4V (white)
Pri motion ra	-028		Sec motion ra	-008
Pri motion dec	+037		Sec motion dec	+002
Notes	N (See Notes)

rPM=0.869 This double is not physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		12298	02 29 04 +67 24 09	CHR 6 Aa,Ab	2010	21	42	0.6	4.66	7.88	3.22	Y
Show	Iot Cas	12298	02 29 04 +67 24 09	STF 262 AB	2022	270	231	3.0	4.66	6.92	2.26	Y
Show		12298	02 29 04 +67 24 09	STF 262 AC	2022	232	117	6.9	4.63	9.05	4.42
Show		12298	02 29 04 +67 24 09	STF 262 AD	2016	10	60	210.9	4.63	8.48	3.85		<===
Show		12298	02 29 04 +67 24 07	STF 262 BC	2015	154	99	8.5	6.92	9.05	2.13
Show			02 29 04 +67 24 09	CTU 2 Ca,Cb	2018	5	101	0.2	4.50	6.10	1.60
Show			02 29 04 +67 24 09	STF 262 CD	2015	8	58	207.1	9.05	8.48	0.57

Sextuple system
4 estimated visually detectable stars in this system

Constellation	Cassiopeia		SAO	12298		HIP	11569		Tycho2	4058-01504-1
Gaia DR2	517650349234855424		HD	15089		HR	707		GC	2952
ADS	1860		BD	BD+66 213		Bayer	Iota Cassiopeiae		Bayer name	Iot Cas
Distance	40.73		Distance ly	132.86		Bayer greek	ι Cas

discov_num	notes	refcode
STF 262	iot Cas. The primary is an unresolved binary, also an Alpha CVn
CHR 6	type variable, P = 1.74 d, and an astrometric, spectroscopic, and
	spectrum variable (Rakos 1962; Klock, AJ 70, 176, 1965). The RV	Rak1962
	variation has not been confirmed.
	Heintz (1962) also detected this pair as a submotion to the visual	Hei1962
	orbit of the AB pair with a period of 52 years and an amplitude of
	0".11. Star C (mag. 8.4, dG4) is probably physical, but Hopmann	Hop1960b
	(1960) computed a hyperbolic orbit for it, as there is some RV
	difference between C and A. q = periastron distance in the true
	orbit = 6".7056. All hyperbolic orbits were rejected from the
	Fourth and subsequent orbit catalogs.	Wor1983
	Soderhjelm gives Aa,Ab,B,C quadruple solution (AB in HIP). High	Sod1999
	mass-sum, strangely well-behaved speckle obs at Delta m=4?
	See Baize & Petit (1989) catalog of doubles with variable component.	Baz1989d
	Drummond et al. (2003) give solution for Aa,Ab incorporating motion of	Dru2003
	the AB pair. The authors conclude that the motion of B relative to
	the CHR pair appears to be rectilinear. Masses of the CHR components
	are derived.
	1985.8540: This autocorrelogram was remeasured; the new results are
	listed in the catalog.	McA1987b
STF 262	AB: H 1 34. AC: H 3 4.	MEv2010
	AC: Hyperbolic orbit.	Hop1960b

refcode	metd	author	reference
Baz1989d	-	Baize, P. & Petit, M.	1989A&AS...77..497B
Baz1989d		A&AS 77, 497, 1989
Dru2003	A j	Drummond, J.D., Milster, S., Ryan, P., & Roberts, L.C.	2003ApJ...585.1007D
Dru2003	+orb	ApJ 585, 1007, 2003
Hei1962	orb -	Heintz, W.D.	1962VeMun...5..135H
Hei1962		Veroff. Sternw. Munchen 5, 135-160, 1962
Hop1960b	orb -	Hopmann, J.	1960MiWie..10..227H
Hop1960b		Mitt. Sternw. Wien 10, 227-256, 1960
McA1987b	Sc j	McAlister, H.A., Hartkopf, W.I., Hutter, D.J., & Franz, O.G.	1987AJ.....93..688M
McA1987b		AJ 93, 688, 1987
MEv2010	-	MacEvoy, B.	...................
MEv2010		private communication, 2010 (see http://www.handprint.com/ASTRO/index.html)
Rak1962	-	Rakos, K.,D.	1962LowOB...5..227R
Rak1962		Lowell Obs. Bull. 5, 227, 1962
Sod1999	orb -	Soderhjelm, S.	1999A&A...341..121S
Sod1999		A&A 341, 121, 1999
Wor1983	-	Worley, C.E. & Heintz, W.D.	1983PUSNO..24g...1W
Wor1983		Pub. USNO 24, Pt. 7, 1983 (Fourth Orbit Catalog)

idgroup	discov	author
1	CHR	Center for High Ang. Res. Astronomy (speckle interferometry systems)
3	CTU	Christou, J.C., & Drummond, J.D.
6	STF	Struve, F.G.W.

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
02291+6724	STF 262	AD	1991	6	60	210.6	4.63	8.48		N	022903.99+672408.6
02291+6724	STF 262	AD	1999	7	60	210.9	4.63	8.48		N D	022903.96+672408.7
02291+6724	STF 262	AD	2003	8	60	212.0	4.63	8.48		N D	022903.96+672408.7
02291+6724	STF 262	AD	2014	9	60	208.9	4.63	8.48	A5pSr	N	022903.96+672408.7
02291+6724	STF 262	AD	2016	10	60	210.9	4.63	8.48	A5pSr	N	022903.96+672408.7

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No records found.

Show	date	username	difficulty	sep	sep_sigma	pa	pa_sigma	delta_mag	#	notes
Show	12/11/16	Robert		104.00	1.78	277.00			3

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