00084+2905 MKT 11 Aa,Ab

Coord 2000	00084+2905		Discov num	MKT  11		Comp	Aa,Ab		Coord arcsec 2000	00 08 23.17 +29 05 27.0
Date first	1988		Date last	1989		Obs	42
Pa first	257		Pa last	241		P.A. Now (θ)	241°
Sep first	0.0		Sep last	0.014		Sep. Now (ρ)	0.014"
Mag pri	2.22		Mag sec	4.21		delta mag (ΔM)	1.99		Spectral class	B8IVp (blue-white)
Pri motion ra	+136		Sec motion ra
Pri motion dec	-163		Sec motion dec
Notes	N O (See Notes, Orbital solution)

This double is physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		73765	00 08 23 +29 05 27	MKT 11 Aa,Ab	1989	42	241	0.0	2.22	4.21	1.99	Y	<===
Show	Alpheratz	73765	00 08 23 +29 05 27	H 5 32 AB	2023	50	286	92.8	2.22	11.11	8.89
Show		73765	00 08 23 +29 05 27	JNN 1 AC	2009	2	5	6.7	2.29	19.60	17.31

Quadruple system
4 estimated visually detectable stars in this system

Common name	Alpheratz		Constellation	Andromeda		SAO	73765		HIP	677
Tycho2	1735-03180-1		HD	358		HR	15		GC	127
ADS	94		BD	BD+28 4		Bayer	Alpha Andromedae		Bayer name	Alp And
Flamsteed	21 Andromedae		Flamsteed name	21 And		FK5	1		Distance	29.74
Distance ly	97.01		Bayer greek	α And

Other names

Sirrah, Sirah, Del Peg, Delta Pegasi

Period (P)	96.7005d	± 0.0043829	Periastron (T)	47374.6m (1988.584y)	± 0.092103	Semi-major axis (a)	0.02443a	± 0.00039
Eccentricity (e)	0.534812	± 0.0046	Inclination (i)	105.5°	± 0.37	Longitude of periastron (ω)	77.4527°	± 0.31
Node (Ω)	285.2°	± 2.5	Notes	n		Reference	Doc2014h
Equinox			Last observation	1989		Grade	2	(1=Definitive, 9=Indet.)

label theta rho 2000-01-01 104.4 0.020 2001-01-01 291.1 0.018 2002-01-01 338.7 0.011 2003-01-01 67.5 0.015 2004-01-01 94.4 0.024 2005-01-01 219.7 0.003 2006-01-01 309.1 0.016 2007-01-01 33.3 0.010 2008-01-01 84.4 0.021 2009-01-01 105.2 0.020 2010-01-01 292.1 0.018 2011-01-01 341.3 0.011 2012-01-01 68.8 0.016 2013-01-01 94.9 0.024 2014-01-01 242.6 0.004 2015-01-01 310.4 0.016 2016-01-01 36.2 0.011 2017-01-01 85.1 0.021 2018-01-01 106.0 0.019 2019-01-01 293.1 0.018 2020-01-01 344.0 0.011 2021-01-01 70.1 0.016 2022-01-01 95.5 0.024 2023-01-01 255.8 0.006 2024-01-01 311.7 0.015 2025-01-01 39.0 0.011 2026-01-01 85.7 0.022 2027-01-01 106.9 0.018 2028-01-01 294.1 0.018 2029-01-01 346.9 0.010 2030-01-01 71.3 0.016 2031-01-01 96.0 0.024 2032-01-01 263.9 0.007 2033-01-01 313.0 0.015 2034-01-01 41.7 0.011 2035-01-01 86.4 0.022 2036-01-01 107.9 0.018 2037-01-01 295.1 0.018 2038-01-01 349.9 0.010 2039-01-01 72.4 0.017 2040-01-01 96.6 0.024 2041-01-01 269.2 0.008 2042-01-01 314.5 0.015 2043-01-01 44.3 0.011 2044-01-01 87.1 0.022 2045-01-01 109.0 0.017 2046-01-01 296.0 0.018 2047-01-01 352.9 0.010 2048-01-01 73.5 0.017 2049-01-01 97.2 0.024 2050-01-01 273.0 0.010

Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st. Measures: green=micrometric, blue=interferometric, purple=photographic

discov_num	notes	refcode
H 5 32	21 And = alp And = Alpheratz
	AB: H V 32. STFB 15. A is spectroscopic binary, P = 96.7d.
	AB: Optical pair, based on study of relative motion of the
	components using the method of apparent motion parameters.	Kiy2008
MKT 11	Aa,Ab: Separations and magnitude differences derived by model fitting
	to calibrated squared visibilities, using measurements with the Mark
	III interferometer. Spectroscopic and photometric data are combined
	with astrometry from the Mark III interferometer to derive orbital
	elements for the SB1 by Pan et al.	MkT1992a
	Pourbaix gives combined solution for this resolved SB2, yielding
	orbital parallaxes and component masses.	Pbx2000b
	Hipparcos astrometric solution adopted some elements from the orbit of	HIP1997d
	Pan et al. (1992).	MkT1992a
	Aa,Ab: Orbit determined by fitting revised Hipparcos intermediate
	astrometric data. Derived component masses are 4.05 +/- 0.50 and
	1.71 +/- 0.20 Msun.	Ren2010
	Aa,Ab: Malkov et al. (2012) derive dynamical, photometric, and
	spectroscopic masses 5.19 +/- 0.18, 4.10, and 3.09 Msun, respectively.	Mlk2012
	Aa,Ab: Docobo et al. (2014) use the spectroscopic elements of Pourbaix
	(2000), together with speckle data and the Hipparcos parallax, to	Pbx2000b
	derive the remaining orbital elements. The resulting masses are
	3.84 +/- 0.29 and 1.63 +/- 0.26 Msun.	Doc2014h

refcode	metd	author	reference
Doc2014h	orb j	Docobo, J.A., Campo, P., Andrade, M., & Horch, E.P.	2014AstBu..69..461D
Doc2014h		Astrophys. Bull. 69, 461, 2014
HIP1997d	orb -	Hipparcos	1997yCat.1239....0E
HIP1997d		Hipparcos Catalog, ESA SP-1200, 1997
HIP1997d		(DMSA/O Orbital Solutions)
Kiy2008	-	Kiyaeva, O.V., Kiselev, A.A. & Izmailov, I.S.	2008SvAL...32..405K
Kiy2008		SvAL 34, 405, 2008
MkT1992a	Km j	Pan, X.P., Shao, M., Colavita, M.M., Armstrong, J.T., Mozurkewich, D.,	1992ApJ...384..624P
MkT1992a	+orb	Vivekanand, M., Denison, C.S., Simon, R.S., et al.
MkT1992a		ApJ 384, 624, 1992
Mlk2012	not -	Malkov, O.Yu., Tamazian, V.S., Docobo, J.A., & Chulkov, D.A.	2012A&A...546A..69M
Mlk2012		A&A 546, A69, 2012
Pbx2000b	orb -	Pourbaix, D.	2000A&AS..145..215P
Pbx2000b		A&AS 145, 215, 2000
Ren2010	orb -	Ren, S. & Fu, Y.	2010AJ....139.1975R
Ren2010		AJ 139, 1975, 2010

discov	author
DOC	Docobo, J. (Docobo et al.)
DOC	Docobo, J.A., Andrade, M., Ling, J.F., Prieto, C., Tamazian, V.S., Balega, Yu.Yu.,
DOC	Blanco, J., Maximov, A.F., et al.
DOC	Docobo, J.A., Tamazian, V.S., Andrade, M., Ling, J.F., Balega, Y.Y.,
DOC	Lahulla, J.F., & Maximov, A.
DOC	Docobo, J.A., Tamazian, V.S., Balega, Y.Y., Andrade, M., Schertl, D., Weigelt, G.,
DOC	Campo, P., & Palacios, M.
DOC	Docobo, J.A., Tamazian, V.S., Andrade, M., Ling, J.F., Balega, Y.Y.,
DOC	Lahulla, J.F., & Maximov, A.
DOC	Highlights of Spanish Astrophysics V, Ap&SS Proc. (Springer-Verlag, Berlin),
DOC	p 491, 2010 (no data)
HIP	(non-component double star solution: G = acceleration solution,
HIP	O = orbit solution, V = variability-induced mover, X = stochastic solution)
JNN	Janson, M., Brandner, W., Lenzen, R., Close, L., Nielsen, E., Hartung, M.,
JNN	Henning, T., & Rouy, H.
JNN	Janson, M., Carson, J., Thalmann, C., McElwain, M.W., Goto, M., Crepp, J.,
JNN	Wisniewski, J., Abe, L., et al.
JNN	Janson, M., Bonavita, M., Klahr, H., Lafreniere, D., Jayawardhana, R.,
JNN	& Zinnecker, H.
JNN	Janson, M., Hormuth, F., Bergfors, C., Brandner, W., Hippler, S., Daemgen, S.,
JNN	Kudryavtseva, N., Schmalzl, E., Schnupp, C., & Henning, T.
JNN	Janson, M., Jayawardhana, R., Girard, J.H., Lafreniere, D., Bonavita, M.,
JNN	Gizis, J., & Brandeker, A.
JNN	Janson, M., Lafreniere, D., Jayawardhana, R., Bonavita, M., Girard, J.H.,
JNN	Brandeker, A., & Gizis, J.E.
JNN	Janson, M., Brandt, T.D., Moro-Martin, A., Usuda, T., Thalmann, C., Carson, J.C.,
JNN	Goto, M., Currie, T., McElwain, M.W., Itoh, Y., Fukagawa, M., Crepp, J., et al.
JNN	Janson, M., Bergfors, C., Brandner, W., Kudryavtseva, N., Hormuth, F.,
JNN	Hippler, S., & Henning, T.
JNN	Janson, M., Bergfors, C., Brandner, W., Bonnefoy, M., Schlieder, J., Kohler, R.,
JNN	Hormuth, F., Henning, T., & Hippler, S.
JNN	Janson, M., Durkan, S., Hippler, S., Dai, X., Brandner, W., Schlieder, J.,
JNN	Bonnefoy, M., & Henning, T. Jnn201
JNN	Calissendorff, P., Janson, M., Kohler, R., Durkan, S., Hippler, S., Dai, X.,
JNN	Brandner, W., Schlieder, J., & Henning, T.
JNN	Janson, M., Durkan, S., Bonnefoy, M., Rodet, L., Kohler, R., Lacour, S., Brandner,
JNN	Calissendorff, P., Janson, M. & Bonnefoy, M.
JNN	Calissendorff, P., Janson, M., Rodet, L., Bonnefoy, M., Brandner, W., Brown-Sevilla,
JNN	S., Chauvin, G., Delorme, P., Desidera, S., Durkan, S., Fontanive, C., Gratton, R.,
JNN	Hagelbe3rg, J., Henning, T., Hippler, S., Lagrange, A.-M., Langlois, M., Lazzoni, C.
KIY	Kiyaeva, O.V., Zhuchkov, R.Ya., Malogolovets, E.V., Orlov, V.V., Glukhova, A.V.,
KIY	Balega, Yu., Yu. & Bikmaev, I.F.
MKT	Shao, M., Colavita, M.M., Hines, B.E., Staelin, D.H., Hutter, D.J., Johnston, K.J.,
MKT	Mozurkewich, D., Simon, R.S., Hershey, J.L., Hughes, J.A. & Kaplan, G.H.
MKT	Hutter, D.J., Johnston, K.J., Mozurkewich, D., Simon, R.S., Colavita, M.M., Pan,
MKT	X.P., Shao, M., Hines, B.E., Staelin, D.H., Hershey, J.L., Hughes, J.A. & Kaplan,
MKT	G.H.
MKT	Mozurkewich, D., Johnston, K.J., Simon, R.S., Bowers, P.F., Gaume, R., Hutter,
MKT	D.J., Colavita, M.M., Shao, M. & Pan, X.P.
MKT	Pan, X.P., Shao, M., Colavita, M.M., Armstrong, J.T., Mozurkewich, D.,
MKT	Vivekanand, M., Denison, C.S., Simon, R.S., et al.
MKT	Armstrong, J.T., Mozurkewich, D., Vivekanand, M., Simon, R.S., Denison, C.S.,
MKT	Johnston, K.J., Pan, X.-P., Shao, M., et al.
MKT	Armstrong, J.T., Hummel, C.A., Quirrenbach, A., Buscher, D.F., Mozurkewich, D.,
MKT	Vivekanand, M., Simon, R.S., Denison, C.S., et al.
MKT	Hummel, C.A., Armstrong, J.T., Quirrenbach, A., Buscher, D.F., Mozurkewich, D.,
MKT	Simon, R.S., & Johnston, K.J.
MKT	Hummel, C.A., Armstrong, J.T., Quirrenbach, A., Buscher, D.F., Mozurkewich, D.,
MKT	Elias, N.M., & Wilson, R.E.
MKT	Mozurkewich, D., Armstrong, J.T., Hindsley, R., Quirrenbach, A., Hummel, C.A.,
MKT	Hutter, D., Johnston, K.J., Hajian, A., Elias, N.M., II, Buscher, D., & Simon, R.
MKT	Armstrong, J.T., Mozurkewich, D., Hajian, A.R., Johnston, K.J., Thessin, R.N.,
MKT	Peterson, D.M., Hummel, C.A., & Gilbreath, G.C.
PBX	Pourbaix, D., Nidever, D., McCarthy, C., Butler, R.P., Tinney, C.G., Marcy, G.W.,
PBX	Jones, H.R.A., Penny, A.J., et al.
PBX	Pourbaix, D., Tokovinin, A.A., & Batten, A.H., Fekel, F.C., Hartkopf, W.I.,
PBX	Levato, H., Morrell, N.I., Torres, G., & Udry, S.

coord_2000

discov_num

comp

epoch

obs

pa

sep

mag_pri

mag_sec

spectr

dm_number

notes

coord_arcsec_2000

00084+2905

MKT 11

Aa,Ab

1989

42

241

0.0

2.22

4.21

B8IVp

+28 4

NO

000823.17+290527.0

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No records found.


No records found.

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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

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

FoV: 30" 1' 5' 15' 30' 1° 2° 4° 5° 8° Limit: 2 3 4 5 10 15 20 25 30 50 100 Primaries only
Click on the map to see the double of your interest. Pass over with the mouse cursor to display the catalog designation.
Show name coord_2000 discov# comp pa sep dist(') Show Alpheratz 00084+2905 MKT 11 Aa,Ab 241 0.0 1 Show Alpheratz 00084+2905 H 5 32 AB 286 92.8 1 Show Alpheratz 00084+2905 JNN 1 AC 5 6.7 1 Show 00089+2916 GRV 9 37 17.8 14 Show 00066+2901 STT 549 AB 260 193.6 24 Show 00066+2901 ENG 1 A,CD 200 139.7 24 Show 00066+2901 LAF 21 AE 83 10.2 24 Show 00066+2901 BU 1338 CD 211 3.3 25 Show 00071+2846 SKF1817 160 1.6 27 Show 00067+2850 FYM 562 289 16.0 28 Show 00110+2908 COU 346 305 0.3 34 Show 00058+2855 HEI 831 136 1.9 35 Show 00058+2917 SKF1816 35 1.6 37 Show 00110+2843 J 867 190 1.3 40 Show 00055+2926 SKF1815 53 1.9 42 Show 00089+2822 RAO 178 117 1.0 45 Show 00048+2912 SKF1656 189 2.1 48 Show 00115+2936 HO 1 158 1.3 51 Show 00122+2936 CBL 563 151 12.5 58 Show 00115+2949 MLB 441 AB 359 14.3 60 Show 00115+2949 MLB 441 AC 351 50.5 60 Show 00115+2949 MLB 441 BC 348 36.1 60 Show 00115+2949 MLB 441 CD 139 6.4 60 Show 00118+2825 BU 255 64 0.4 61 Show 00113+2953 MLB 631 AB 270 8.3 62 Show 00113+2953 MLB 631 AC 41 49.5 62 Show 00113+2953 MLB 631 AD 274 2.2 62 Show 00043+2829 LDS3117 5 68.0 65 Show 00063+2803 SKF1598 123 1.0 69 Show 00099+3014 MLB 552 189 8.2 72 Show 00031+2929 MLB 510 139 5.5 73 Show 00072+2752 SKF1818 43 6.4 76 Show 00049+3005 A 1250 AB 41 0.9 76 Show 00049+3005 STT 548 AC 64 28.6 76 Show 00029+2844 MLB 509 329 3.3 76 Show 00136+2828 MLB 553 44 7.9 78 Show 00059+2754 SKF1067 19 1.3 79 Show 00140+2837 BRT 117 AB 68 5.5 79 Show 00140+2837 MLB 554 AC 49 29.3 79 Show 00052+3020 STF3058 51 12.6 86 Show 00140+2822 LDS3139 310 2.0 86 Show 00021+2929 SLW 1 192 16.8 86 Show 00090+2738 GIC 1 AB 320 68.7 87 Show 00090+2738 PWS 1 AC 15 40.8 87 Show 00136+2803 SKF1599 159 3.4 88 Show 00042+3015 SKF1940 200 1.2 89 Show 00039+2759 A 429 AB 327 0.5 90 Show 00039+2759 HJ 1929 AB,C 285 4.9 90 Show 00114+3027 LAF 22 12 2.5 91 Show 00013+2925 LDS5155 268 256.7 94 Show 00060+2736 RAO 177 215 1.5 95

	A	Ab	B
Ab	pa=241.0° sep=0.01"
B	pa=285.6° sep=92.79"	pa=285.6° sep=92.78"
C	pa=4.8° sep=6.70"	pa=4.9° sep=6.71"	pa=101.5° sep=91.77"

Common name	Alpheratz		Other names	Sirrah, Sirah, Del Peg, Delta Pegasi		Coord arcsec 2000	000823.17+290527.0		Mag	2.22
Spectral class	B8IVpMnHg (blue-white)		PmRA	138.00		PmDE	-163.0		SAO	73765
HIP	677		Tycho2	1735-03180-1		HD	358		HR	15
GC	127		BD	BD+28 4		Bayer	Alpha Andromedae		Bayer name	alp And
Flamsteed	21 Andromedae		Flamsteed name	21 And		FK5	1

SAO	73765		DelFlag			RA1950			PmRA1950	0.0104
DE1950			PmDE1950	-0.158		Vmag	2.1		SpType	A0p
Double code			Source	74		CatNum	1		DM	BD+28 4
DMcomp			BDsup			HD	358		M HD	0
GC	127		RA1950rad	0.0252957		DE1950rad	0.5029075		PmRA2000	0.0104
PmDE2000	-0.163

Catalog	H		HIP	677		Proxy			RAhms	00 08 23.17
DEdms	+29 05 27.0		Vmag	2.07		VarFlag	1		R Vmag	H
RAdeg	2.09653		DEdeg	29.0908		AstroRef	+		Plx	33.6
CCDM	135.68 -		N CCDM	I		Nsys	1		Ncomp	1
MultFlag	O		Source			Qual			M HIP
Theta			Rho			HD			BD	BD+28 4
CD			CP			Dm number	+28 4		VIred	-0.1
SpType	B9p		R SpType			Coord arcsec 2000	000823.17+290527.0

HIP	677		Sn	75		So	4		Nc	1
RArad	0.0365914186		DErad	0.5077307372		Plx	33.62		PmRA	137.46
PmDE	-163.44		E RArad	0.27		E DErad	0.17		E Plx	0.35
E pmRA	0.38		E pmDE	0.21		Hpmag			E Hpmag	0.0006
SHp	0.005		VA	0		BV	-0.038		E BV	0.005
VI	-0.1

Coord arcsec 2000

000823.17+290527.0

Mag

4.21

Delta magnitude

1.99

Coordinate calculated

yes

Coord arcsec 2000	000816.35+290552.0		Mag	11.11		PmRA	3.00		PmDE	-15.0
Tycho2	1735-03181-1		Delta magnitude	8.89		Coordinate calculated	yes

Tycho2	1735-03181-1		Pflag			RAmdeg	2.06936911		DEmdeg	29.09621283
PmRA	-0.7		PmDE	-13.2		E RAmdeg	58		E DEmdeg	67
E pmRA	1.9		E pmDE	2.0		EpRAm	1977.72		EpDEm	1971.03
Num	6		Q RAmdeg	0.5		Q DEmdeg	1.2		Q pmRA	0.5
Q pmDE	1.1		BTmag	11.591		E BTmag	0.106		VTmag	11.108
E VTmag	0.109		Prox	877		TYC	T		HIP
CCDM			RAdeg	2.06936444		DEdeg	29.09623361		EpRA 1990	1.63
EpDE 1990	1.63		E RAdeg	175.4		E DEdeg	159.4		Posflg
Corr	0.0

Coord arcsec 2000

000823.21+290533.7

Mag

19.6

Delta magnitude

17.38

Coordinate calculated

yes