TIC 328546841

TYC 3973-01834-1 · Gaia DR3 2005652596567308032 · 2MASS J22082074+5430333

Position: 22h 08m 20.75s, +54° 30′ 33.3″
V magnitude: 10.51
Where: 91 arcmin west of V345 Lac, in the 1.50–1.60° ring
Signal: EA candidate, both minima, 8.38 days. Primary 0.12 mag, about 6 hours below 98 percent. Secondary 0.084 mag at phase 0.492.

What TESS shows

Seventeen primary minima in the same six sectors give

Min I = BTJD 2861.17478 + 8.384603 E

The deep minimum is 0.12 mag. It stays below 98 percent of normal light for 6.1 hours, and below half depth for 4.1 hours. A second minimum, 0.084 mag, falls at phase 0.492. The times scatter by 1.4 minutes rms. The largest residual is 2.3 minutes. A star 96 arcsec away stays near full light. The note is not a VSX submission.

The light curves

Six TESS sectors. Red ticks are the deeper minima.

One deep minimum and the phase-0.492 minimum in sector 84. Blue is a star 96 arcsec away.

All six sectors folded on the 8.38460-day period. The second minimum is just before phase 0.5.

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 2005652596567308032, G = 10.39). Gold squares C1 to C5 are comparison stars of similar brightness. Tap an image for the full-size printable chart.

Wide finder, 30 × 30 arcmin, for star-hopping.

Close finder, 8 × 8 arcmin, to pick out the target.

	Gaia DR3	RA, Dec (J2000)	G	BP	RP	From target
C1	2005653524280214400	22:07:56.2 +54:31:06.4	9.74	9.88	9.46	3.6′
C2	2005653146323325824	22:08:41.2 +54:33:18.3	11.03	11.27	10.64	4.0′
C3	2005654245834925568	22:08:31.6 +54:36:17.6	11.43	11.71	10.98	6.0′

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 filed. New addition from the 1.50–1.60° ring, 28 Oct 2026. The nearest VSX star is 56 arcsec away and is not this clock.

Next two eclipses

Eclipse 1Primary minimum, the deep one. 31 Oct 2026, 17:54 UTC · 31 Oct, 10:54 PDT Pacific · 31 Oct, 18:54 CET central Europe
Eclipse 2Secondary minimum, the shallower one. 4 Nov 2026, 20:51 UTC · 4 Nov, 12:51 PST Pacific · 4 Nov, 21:51 CET central Europe

The deep minimum is 0.12 mag and lasts about 6 hours below 98 percent. The shallower one, 0.084 mag, follows 4.12 days later. The largest residual is 2 minutes. They have not been checked from the ground.

Help with a measurement

A ground eclipse checks both minima. The second one follows 4.12 days after the deep one. Pick a date if you can try.

The note

An 8.385-day eclipsing binary candidate: TIC 328546841 (PDF)

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.