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Latest Details
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| Name |
i Boo |
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| AAVSO UID |
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| Constellation |
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| J2000.0 |
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| B1950.0 |
15 02 08.46 +47 50 53.1 |
| Proper motion |
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| Galactic coord. |
80.370 +57.066 |
Other names
(Internal only)
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44 Boo B |
1RXS J150348.3+473924 |
ADS 9494 B |
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BD+48 2259 B |
GJ 575.0 B |
HD 133640 B |
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HIP 73695 |
HR 5618 B |
SAO 45357 B |
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| Variability type |
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EW/KW |
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| Spectral type |
G2V+G2V |
| Mag. range |
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5.80 - 6.39 V |
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| Discoverer |
-- |
| Epoch |
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| Outburst |
-- |
| Period |
0.26781595 d (6.427583 h) |
| Rise/eclipse dur. |
-- |
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Remarks
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Some references may be clicked to view in new window. Roll over index number to view submission details.
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1 |
Otero, Sebastian Alberto
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Secondary component of a 2" visual binary (A= 5.19V). Combined range V= 4.70 - 4.88. |
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2 |
GCVS Team |
ADS 9494 B (A 5.1m, G0; a = 3.8", e = 0.43, P = 225a). Min II 6.29. P var. Min = 2434132.517 + 0.267812271d*E + 0.115242d*10**(-9)*E**2 (1916 - 1958) [H.Schneller, IBVS N57, 1964.]; Min = 2438513.4166 + 0.2678143d*E (1947 - 1967) [H.W.Duerbeck, IBVS N1023, 1975.]; since 1968 - see Table. Detailed studies of period changes [A.Purgathofer, F.Prochazka, Wien Mitt 13, N10, 151, 1967., M.A.Svechnikov, L.P.Surkova, Perem. Zvezdy 18, N6, 571, 1973., F.van't Veer, AsAp 20, 131, 1972., D.M.Popper, P.J.Dumont, AJ 82, 216, 1977.]. Sudden period changes at JD2423800, 29300, 32300, 35150 are possible. The shape of the light curve and the depth of Min II are also variable. According to [L.Binnendijk, AJ 60, 355, 1955.], it is also possible that ADS 9494 A is variable, with the amplitude up to 0.09m. |
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References
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External Links
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Location
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Catalog Data
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Information from selected catalogs obtained by cross-matching to 2 arc seconds using the CDS X-Match Service. These data may not be complete.
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2MASS
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J = 3.42 | H = 3.12 | K = 3.01 | J - K = 0.41 |
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SDSS-DR12
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u = 7.37 | g = 6.01 | r = 5.78 | i = 12.51 | z = 5.35 | u - g = 1.36 | r - i = -6.74 |
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Images
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Supporting Documents
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Revision History
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