TIC 330732812
TYC 3982-2982-1 · Gaia DR3 2004594316625138048
- Position
- 22h 16m 07.29s, +53° 56′ 04.6″
- V magnitude
- 11.34
- Where
- 50 arcmin southwest of V345 Lac
- Signal
- EA, period not fixed. Two smooth eclipses, to about 80 percent and 78 percent of the normal light, each about 10 hours long.
What TESS shows
Two smooth eclipses, at BTJD 1773.889 (17 Oct 2019) and BTJD 3563.079 (9 Sep 2024). They are 1789 days apart and last about 10 hours. Many shorter periods still hide their other eclipses in the TESS gaps, so no period is adopted and the next eclipse is not predicted. A noisy patch near BTJD 3604 in sector 84 is not a third eclipse: the points jump up and down instead of making one smooth dip. A V = 8.7 star 67 arcseconds away does not fade. This one stays on the chart so it is not forgotten, and it is not ready to file.
The light curves
Finder chart
Real sky images (DSS2 red) with Gaia DR3 stars overlaid. North is up, east is left, J2000. Red tick marks point at the target (Gaia DR3 2004594316625138048, G = 11.41). Gold squares C1 to C5 are comparison stars of similar brightness. Tap an image for the full-size printable chart.
| Gaia DR3 | RA, Dec (J2000) | G | BP | RP | From target | |
|---|---|---|---|---|---|---|
| C1 | 2004593973027790208 | 22:15:58.0 +53:54:17.7 | 11.68 | 12.02 | 11.17 | 2.2′ |
| C2 | 2004968631618099456 | 22:16:23.3 +53:55:48.4 | 10.91 | 11.31 | 10.34 | 2.4′ |
| C3 | 2004641458188638592 | 22:15:49.6 +53:57:40.4 | 11.71 | 11.96 | 11.30 | 3.1′ |
| C4 | 2005016907046935936 | 22:16:04.3 +53:59:26.4 | 11.41 | 11.52 | 11.19 | 3.4′ |
| C5 | 2004969971642107520 | 22:16:29.6 +53:58:55.8 | 11.89 | 12.22 | 11.40 | 4.4′ |
Comparison stars are within about 1 mag of the target in Gaia G, have similar color, no close companion, and no VSX entry within 10 arcsec. Images: DSS2 red (POSS-II, STScI Digitized Sky Survey). Stars: ESA Gaia DR3.
VSX
Not ready for VSX. Two eclipses do not pick a period.
Next date
There is no date to publish. Two eclipses, 1789 days apart, leave too many possible periods.
Help with a measurement
There is no eclipse date to sign up for. Leave an email if you want a note when a period is real.
These pages use the public TESS Quick-Look Pipeline and catalog positions. A prediction is not a confirmation. If you observe, write down which star was in the aperture.