08399+1933 BKO 34 DE

Coord 2000	08399+1933		Discov num	BKO  34		Comp	DE		Coord arcsec 2000	08 39 50.72 +19 32 26.9
Date first	1894		Date last	2017		Obs	11
Pa first	2		Pa last	3.2		P.A. Now (θ)	3.2°
Sep first	35.3		Sep last	35.39		Sep. Now (ρ)	35.39"
Mag pri	6.67		Mag sec	11.75		delta mag (ΔM)	5.08		Spectral class	K0III (yellow-orange)
Pri motion ra	-034		Sec motion ra	-036
Pri motion dec	-011		Sec motion dec	-011
Notes	N (See Notes)

rPM=0.053 (< 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		98013	08 39 56 +19 33 11	GII 164 Aa,Ab	2014	1	101	0.2	8.10	8.10	0.00
Show	HD 73618	98013	08 39 56 +19 33 11	BU 584 AB	2006	11	290	0.9	7.31	12.30	4.99
Show		98013	08 39 56 +19 33 11	S 571 AG	2018	47	158	45.7	7.31	7.47	0.16
Show		98013	08 39 56 +19 33 11	S 571 AD	2018	45	242	92.1	7.31	6.67	0.64
Show		98010	08 39 51 +19 32 27	CHR 156 Da,Db	2014	13	241	0.6	6.67	9.87	3.20
Show		98010	08 39 51 +19 32 27	BU 584 DC	2017	39	89	99.6	6.67	7.47	0.80
Show		98010	08 39 51 +19 32 27	BKO 34 DE	2017	11	3	35.4	6.67	11.75	5.08		<===

Octuple system
6 estimated visually detectable stars in this system

Constellation	Cancer		SAO	98010		HIP	42497		Tycho2	1395-02737-1
Gaia DR2	661271173693364864		HD	73598		BD	BD+20 2150		Distance	276.24
Distance ly	901.09

discov_num	notes	refcode
BU 584	In Praesepe.
	DC: D is variable. Position (2000): 08 39.8 +19 32. In Praesepe.
S 571	STTA 95. C is a spectroscopic binary, and is +20@2153.
	AC: HJL 97.	HJL1986
CHR 156	Da: No published evidence of RV variation. Noted as occultation binary
	by Peterson & White (1984). Magnitude differences of 3.1 in blue and	Pts1984
	Magnitude differences of 3.1 in blue and 3.8 in red reported by
	Peterson et al. (1989) are consistent with our difficulty in detecting	Pts1989
	the faint secondary. Praesepe cluster member.	Msn1993b

refcode	metd	author	reference
HJL1986	Pa -	Halbwachs, J.L.	1986A&AS...66..131H
HJL1986		A&AS 66, 131, 1986
HJL1986		(Possible CPM pairs from AGK2/3. Coarse astrometry, incl. mean 1950 dates, added
HJL1986		only for previously unknown pairs. Table 1: HJL 1 - 326, Table 2: HJL1001 - 1113)
Msn1993b	Sc j	Mason, B.D., Hartkopf, W.I., McAlister, H.A., & Sowell, J.R.	1993AJ....106..637M
Msn1993b		AJ 106, 637, 1993
Pts1984	O j	Peterson, D.M. & White, N.M.	1984AJ.....89..824P
Pts1984		AJ 89, 824, 1984
Pts1989	O j	Peterson, D.M., Baron, R., Dunham, E.W., Mink, D., Aldering, G., Klavetter, J., &	1989AJ.....98.2156P
Pts1989		Morgan, R.
Pts1989		AJ 98, 2156, 1989

idgroup	discov	author
1	BKO	Ladanyi, T. & Berko, E.
32	BU	Burnham, S.W. (BU 1 - 81)
210	CHR	Center for High Ang. Res. Astronomy (speckle interferometry systems)
212	GII	Gili, R.
233	GII	Gili, R., Prieur, J.-L., Rivet, J.-P., Scardia, M., Pansecchi, L., Argyle, R.W.,
233	GII	Ling, J.F., Piccotti, L., Aristidi, E., Koechlin, L., Bonneau, D. & Maccarini, L.
234	GII	Gili, R., Prieur, J.-L., Rivet, J.-P., Vakili, F., Scardia, M., Pansecchi, L.,
234	GII	Argyle, R.W., Ling, J.F., Piccotti, L., Aristidi, E., Koechlin, L., Bonneau, D.,
234	GII	Maccarini, L. & Serot, J.
235	GII	Gili, R., Prieur, J.-L., Rivet, J.-P., Vakili, F., Scardia, M., Pansecchi, L.,
235	GII	Argyle, R.W., Ling, J.F., Piccotti, L., Aristidi, E., Koechlin, L., Bonneau, D.,
235	GII	Maccarini, L. & Serot, J.
238	S	South, J.

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
08399+1933	BKO 34	DE	2002	3	3	35.2	6.67	11.00	K0III	D	083950.72+193226.9
08399+1933	BKO 34	DE	2006	4	3	35.3	6.67	11.00	K0III	D	083950.72+193226.9
08399+1933	BKO 34	DE	2011	6	3	35.8	6.67	11.00	K0III	N D	083950.72+193226.9
08399+1933	BKO 34	DE	2012	7	3	35.0	6.67	11.75	K0III	N	083950.72+193226.9
08399+1933	BKO 34	DE	2014	8	3	35.4	6.67	11.75	K0III	N	083950.72+193226.9
08399+1933	BKO 34	DE	2016	9	3	35.2	6.67	11.75	K0III	N	083950.72+193226.9
08399+1933	BKO 34	DE	2017	11	3	35.4	6.67	11.75	K0III	N	083950.72+193226.9

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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

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