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Latest Details
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| Name |
del Sge |
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| AAVSO UID |
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| Constellation |
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| J2000.0 |
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| B1950.0 |
19 45 09.52 +18 24 34.6 |
| Proper motion |
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| Galactic coord. |
55.767 -3.383 |
Other names
(Internal only)
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7 Sge |
AAVSO 1942+18 |
BD+18 4240 |
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CSV 101889 |
HD 187076 |
HD 187077 |
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HIP 97365 |
HR 7536 |
IRAS 19451+1824 |
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IRC +20433 |
PPM 136976 |
RAFGL 2456 |
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SAO 105259 |
SRS 30743 |
SV* P 5104 |
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TIC 386634500 |
TYC 1619-3542-1 |
WDS J19474+1832AB |
(Not logged in) Add name
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| Variability type |
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SR |
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| Spectral type |
M2II+B9.5V |
| Mag. range |
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3.68 - 3.90 V |
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| Discoverer |
-- |
| Epoch |
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| Outburst |
-- |
| Period |
47.4 d |
| 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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Periods found in 2001PASP..113..983P: 47.4 and 25 d. Possible Long Secondary Period (LSP) around 650 d. (2015MNRAS.454.2344P). Orbital period 3703.7 d. |
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2 |
2009arXiv0908.3228T |
Detected periods: 32.4, 34.0, 34.8, 54.2d [2009arXiv0908.3228T]. |
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3 |
GCVS Team |
VB A (B, A = 0.04", P = 7 yr); SB2 (Porb = 3725d [D.B.McLaughlin, E.B.Weston, M.Chadwick, PASP 64, 300, 1952.]). The last superior conjunction of the B-star and its atmospheric eclipse was in March - April 1980 [A.H.Batten, W.A.Fisher, PASP 93, 769, 1981.]. |
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(Not logged in) Add remark
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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 |
Pugh, T.; Gray, D. F.; Griffin, R. F., 2015, The orbit and variations of
δ Sagittae |
2015MNRAS.454.2344P |
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2 |
V. Tabur, T.R. Bedding, L.L. Kiss, T.T. Moon, B. Szeidl, H. Kjeldsen, 2009,
arXiv:0908.3228v1 [astro-ph.SR] |
2009arXiv0908.3228T |
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3 |
C. Koen, L. Eyer, 2002, MNRAS 331, 45 |
2002MNRAS.331...45K |
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Percy, J. R.; Wilson, J. B.; Henry, G. W., 2001, Long-Term VRI Photometry
of Small-Amplitude Red Variables. I. Light Curves and Periods |
2001PASP..113..983P |
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Perryman, M. A. C.; et al., 1997, The HIPPARCOS and TYCHO catalogues |
1997HIP...C......0E |
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6 |
H.Neckel, AsAp Suppl 18, 169, 1974. |
1974A&AS...18..169N |
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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 = 0.63 | H = -0.44 | K = -0.56 | J - K = 1.19 |
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AllWISE
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W3 = -0.69 | W4 = -1.03 | W3 - W4 = 0.34 |
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Images
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Supporting Documents
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Revision History
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