03082+4057 JNN 3 AH

Coord 2000	03082+4057		Discov num	JNN   3		Comp	AH		Coord arcsec 2000	03 08 10.13 +40 57 20.3
Date first	2008		Date last	2009		Obs	2
Pa first	206		Pa last	206.3		P.A. Now (θ)	206.3°
Sep first	5.1		Sep last	5.08		Sep. Now (ρ)	5.08"
Mag pri	2.11		Mag sec	17.10		delta mag (ΔM)	14.99		Spectral class	B8V (blue-white)
Pri motion ra	+002		Sec motion ra
Pri motion dec	-001		Sec motion dec
Notes	N U K (See Notes, Proper motion indicates non-physical, 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 This double is not physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		38592	03 08 10 +40 57 20	CSI 1 Aa1,2	2010	65	43	0.0	2.12			Y
Show		38592	03 08 10 +40 57 20	LAB 2 Aa,Ab	2010	119	304	0.1	2.12	4.60	2.48	Y
Show		38592	03 08 10 +40 57 20	BU 526 AB	2018	12	156	59.4	2.11	12.70	10.59
Show	Algol	38592	03 08 10 +40 57 20	BU 526 AC	2018	12	147	68.6	2.11	12.50	10.39
Show		38592	03 08 10 +40 57 20	BU 526 AD	2018	15	193	82.6	2.11	11.47	9.36
Show		38592	03 08 10 +40 57 20	BU 526 AE	2009	3	186	85.5	2.11	12.50	10.39
Show		38592	03 08 10 +40 57 20	DAL 46 AF	2009	3	111	93.2	2.11	13.70	11.59
Show		38592	03 08 10 +40 57 20	JNN 3 AH	2009	2	206	5.1	2.11	17.10	14.99		<===
Show			03 08 12 +40 56 27	BU 526 BC	2018	12	104	13.7	12.70	12.50	0.20
Show		38592	03 08 08 +40 56 01	BU 526 DE	2018	10	121	10.9	10.50	12.50	2.00
Show			03 08 18 +40 56 46	DAL 46 FG	2015	3	284	6.2	13.70	14.70	1.00

Decuple system
8 estimated visually detectable stars in this system

Common name	Algol		Constellation	Perseus		SAO	38592		HIP	14576
Tycho2	2851-02168-1		Gaia DR2	239863001382455424		HD	19356		HR	936
GC	3733		ADS	2362		BD	BD+40 673		Bayer	Beta Persei
Bayer name	Bet Per		Flamsteed	26 Persei		Flamsteed name	26 Per		FK5	111
Distance	27.57		Distance ly	89.93		Bayer greek	β Per

Other names

ALGHOUL, GORGONA, GORGONEA PRIMA, DEMON STAR

Meaning

ogre, monster

discov_num	notes	refcode
LAB 2	Aa,Ab: bet Per = 26 Per = Algol , prototype of the Algol-type binaries.
	The eclipse phenomena, known since historical times (although the time
	of minimum brightness was first measured by Montanari on 8 Nov 1670)
	was first explained as an eclipsing binary by Goodericke as early as
	1782. According to R.G. Aitken, this was verified when it was noted as	A__1935f
	the second spectroscopic binary based on photographic spectra
	obtained by Prof. H.C. Vogel at Potsdam in November, 1889. Belopolsky
	discovered a variation in the radial velocity with a period of order
	1.8 years, later resolved by Labeyrie and his speckle camera in 1973;	Lab1974
	the magnitude difference is about 2.5.
	The binary, a radio and X-ray source, is triple (and possibly
	quadruple, but the variation with the 32 yr period is more probably an
	apsidal rotation of the eclipsing pair).
	The spectroscopic data were discussed by Hill et al. (1970, 1971).	HlG1970
	ADS lists several distant, faint, and probably optical companions.	HlG1971
	Elements P, T, e, and omega for Labeyrie et al. (1974) orbit adopted	Lab1974
	from the spectroscopic orbit of Hill et al. (1971).
	Analysis of the spectroscopic/interferometric orbit is given by
	Bonneau (1979)	Bnu1979
	See Baize & Petit (1989) catalog of doubles with variable component.	Baz1989d
	Hipparcos astrometric solution adopts some elements from the orbits of	HIP1997d
	Pan et al. (1993) and	MkT1993a
	Gatewood et al. (1995).	Gat1995
	Peterson et al. (2011) orbits of both the outer (LAB 2Aa,Ab) and	Ptn2011
	inner (CSI 1Aa1,Aa2) are based on VLBI measures combined with
	speckle and radial velocity data. Assuming masses of the primary and
	secondary of 3.70 and 0.79 Msun, respectively, they derive a mass for
	the tertiary of 1.51 +/- 0.02 Msun.
BU 526	AB: Additional notes may be found in Burnham (1894).	Bu_1894

refcode	metd	author	reference
A__1935f	-	Aitken, R.G.	1935QB821.A3.......
A__1935f		The Binary Stars, 1935
Baz1989d	-	Baize, P. & Petit, M.	1989A&AS...77..497B
Baz1989d		A&AS 77, 497, 1989
Bnu1979	orb -	Bonneau, D.	1979A&A....80L..11B
Bnu1979		A&A 80, L11, 1979
Bu_1894	Ma j	Burnham, S.W.	1894PLicO...2....3B
Bu_1894		Pub. Lick Obs. 2, 3, 1894 (includes most data from Bu_1893a)	1893AN....131..329B
Gat1995	-	Gatewood, G.D., de Jonge, J.K., & Heintz, W.D	1995AJ....109..434G
Gat1995		AJ 109, 434, 1995
HIP1997d	orb -	Hipparcos	1997yCat.1239....0E
HIP1997d		Hipparcos Catalog, ESA SP-1200, 1997
HIP1997d		(DMSA/O Orbital Solutions)
HlG1970	-	Hill, G. & Hutchings, J.B.	1970ApJ...162..265H
HlG1970		ApJ 162, 265, 1970
HlG1971	-	Hill, G., Barnes, J.V., Hutchings, J.B., & Pearce, J.A.	1971ApJ...168..443H
HlG1971		ApJ 168, 443, 1971
Lab1974	S j	Labeyrie, A., Bonneau, D., Stachnik, R.V., & Gezari, D.Y.	1974ApJ...194L.147L
Lab1974	+orb	ApJ 194, L147, 1974
Lab1974		(data from Hale 5m, KPNO 3.8m, 2.1m. Aperture listed as mean value of 3.6m unless
Lab1974		specifically given in paper)
MkT1993a	Km j	Pan, X.-P., Shao, M., & Colavita, M.M.	1993ApJ...413L.129P
MkT1993a	+orb	ApJ 413, L129, 1993
Ptn2011	Kg -	Peterson, W.M., Mutel, R.L., Lestrade, J.-F., Gudel, M., & Goss, W.M.	2011ApJ...737..104P
Ptn2011	+orb	ApJ 737, 104, 2011

idgroup	discov	author
1	BU	Burnham, S.W. (BU 1 - 81)
179	CSI	Csizmadia, Sz., Borkovits, T., Paragi, Zs., Abraham, P., Szabados, L., Mosoni, L.,
179	CSI	Sturmann, L., Sturmann, J., et al.
180	DAL	Daley, J.A.
230	JNN	Janson, M., Brandner, W., Henning, T., & Zinnecker, H.
231	JNN	Janson, M., Brandner, W., Lenzen, R., Close, L., Nielsen, E., Hartung, M.,
231	JNN	Henning, T., & Rouy, H.
232	JNN	Janson, M., Carson, J., Thalmann, C., McElwain, M.W., Goto, M., Crepp, J.,
232	JNN	Wisniewski, J., Abe, L., et al.
233	JNN	Janson, M., Bonavita, M., Klahr, H., Lafreniere, D., Jayawardhana, R.,
233	JNN	& Zinnecker, H.
234	JNN	Janson, M., Hormuth, F., Bergfors, C., Brandner, W., Hippler, S., Daemgen, S.,
234	JNN	Kudryavtseva, N., Schmalzl, E., Schnupp, C., & Henning, T.
235	JNN	Janson, M., Jayawardhana, R., Girard, J.H., Lafreniere, D., Bonavita, M.,
235	JNN	Gizis, J., & Brandeker, A.
236	JNN	Janson, M., Lafreniere, D., Jayawardhana, R., Bonavita, M., Girard, J.H.,
236	JNN	Brandeker, A., & Gizis, J.E.
237	JNN	Janson, M., Brandt, T.D., Moro-Martin, A., Usuda, T., Thalmann, C., Carson, J.C.,
237	JNN	Goto, M., Currie, T., McElwain, M.W., Itoh, Y., Fukagawa, M., Crepp, J., et al.
238	JNN	Janson, M., Bergfors, C., Brandner, W., Kudryavtseva, N., Hormuth, F.,
238	JNN	Hippler, S., & Henning, T.
239	JNN	Janson, M., Bergfors, C., Brandner, W., Bonnefoy, M., Schlieder, J., Kohler, R.,
239	JNN	Hormuth, F., Henning, T., & Hippler, S.
241	JNN	Janson, M., Durkan, S., Hippler, S., Dai, X., Brandner, W., Schlieder, J.,
241	JNN	Bonnefoy, M., & Henning, T. Jnn201
242	JNN	Calissendorff, P., Janson, M., Kohler, R., Durkan, S., Hippler, S., Dai, X.,
242	JNN	Brandner, W., Schlieder, J., & Henning, T.
243	JNN	Janson, M., Durkan, S., Bonnefoy, M., Rodet, L., Kohler, R., Lacour, S., Brandner,
243	JNN	W., Henning, R. & Girard, J.
246	JNN	Calissendorff, P., Janson, M., Rodet, L., Bonnefoy, M., Brandner, W., Brown-Sevilla,
246	JNN	S., Chauvin, G., Delorme, P., Desidera, S., Durkan, S., Fontanive, C., Gratton, R.,
246	JNN	Hagelbe3rg, J., Henning, T., Hippler, S., Lagrange, A.-M., Langlois, M., Lazzoni, C.
246	JNN	Maire, A.-L., Messina, S., Meyer, M., Moller-Nsson, O., Rabus, M., Schlieder, J.,
246	JNN	Vigan, A., Wahhaj, Z., Wildi, F. & Zurlo, A.

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
03082+4057	JNN 3	AH	2009	2	206	5.1	1.95	17.10	B8V	N UK	030810.13+405720.3

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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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