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Latest Details
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| Name |
SU Lac |
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| AAVSO UID |
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| Constellation |
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| J2000.0 |
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| B1950.0 |
22 21 03.46 +55 15 28.5 |
| Proper motion |
| RA: 3.6 +/- 2.7 mas/y | Dec: 2.6 +/- 2.6 mas/y | Source: UCAC4 |
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| Galactic coord. |
102.942 -1.489 |
Other names
(Internal only)
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2MASS J22225703+5530408 |
AAVSO 2219+55B |
ADS 15892 |
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AN 5.1915 |
ASASSN-V J222256.99+553040.8 |
ATO J335.7379+55.5114 |
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BD+54 2755D |
Gaia DR2 2005943451750792320 |
Gaia DR3 2005943451750792320 |
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IRAS 22210+5515 |
TIC 422105959 |
WDS J22230+5533D |
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WISEA J222257.07+553040.9 |
ZTF J222257.06+553040.9 |
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(Not logged in) Add name
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| Variability type |
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M |
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| Spectral type |
M5e: |
| Mag. range |
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10.2 - 16.0 V |
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| Discoverer |
Edward Barnard (1915) |
| Epoch |
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| Outburst |
-- |
| Period |
317 d |
| Rise/eclipse dur. |
46% (146 d) |
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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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Period varies strongly. Mean period from AAVSO data 1967-2023 is 309 d. Period given in the table (317 d.) is for AAVSO V data between 2002 and 2023. |
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2 |
GCVS Team |
P var. Max = 2412748 + 279.10d*E (JD2412700 - 27000) [H.Huth, E.Splittgerber, MVS 5, H.6, 109, 1970.]; Max = 2426972 + 286.74d*E (JD2426900 - 31000); Max = 2431008 + 306.0d*E (JD2431000 - 33150) [General Catalogue of Variable Stars, 4th Edition, Volumes I-III, P.N. Kholopov et al.]; Max = 2433150 + 319.14d*E (JD2433150 - 42150) [H.Huth, E.Splittgerber, MVS 5, H.6, 109, 1970.]; since JD2442100 - see Table. |
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References
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Click reference title/citation to view in new window. Roll over index number to view submission details.
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1 |
Albrighton, S., 2024, Recent observations of Mira Variables on the BAAVSS
programme. 4 |
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2 |
V.P.Zessewitsch, M.S.Kazanasmas, Atlas of Finding Charts for Variable
Stars, M., 1971. |
1971afcv.book.....T |
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3 |
Hartwig, E.; Muller, G., 1921, Benennung von neu entdeckten veraenderlichen
Sternen |
1921AN....212..353. |
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4 |
General Catalogue of Variable Stars, 4th Edition, Volumes I-III, P.N.
Kholopov et al. |
-- |
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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 = 5.13 | H = 4.40 | K = 3.95 | J - K = 1.18 |
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AllWISE
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W1 = 3.41 | W2 = 2.87 | W3 = 2.23 | W4 = 1.66 | W1 - W2 = 0.55 | W3 - W4 = 0.57 |
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APASS-DR9
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B = 14.91 | V = 12.96 | g' = 14.20 | r' = 11.70 | i' = 7.82 | B - V = 1.95 |
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Images
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Supporting Documents
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Revision History
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