TIC 284314749

Eclipsing binaryRare, already known

Rare & notable finds

Something genuinely unusual turned up. Treat it as a lead: every one of these has ordinary explanations too, listed with each. How these checks work →

Already known: the catalogued variable Gaia DR3 430799139788091904 (E, 56" away) has the same period - its light leaks into TESS's big pixels; same period as the known variable Gaia DR3 430799139788091904. The rare-find check confirms what is on record - still nice, but not a new discovery.

Microlensing (rogue planet?) significant
A one-off, symmetric brightening at BTJD 3442.14 that fits the gravitational-lens shape better than a flare (Einstein time 0.7 h). Events this short can be made by a free-floating (rogue) planet passing in front of the star. Very rare in TESS data; scattered light and asteroids can mimic it.

Checked, nothing found (6)

Exocomet-shaped dip · Eclipse timing (third body?) · Eclipses changing depth · Pulsating star in an eclipsing binary · Extra dips outside the eclipses · Type of star

Checked 2026-10-12 04:32 on NVIDIA GeForce RTX 4070, using every TESS sector of this star. All results (.json)

Notes

Rare, already known: Microlensing (rogue planet?) (the catalogued variable Gaia DR3 430799139788091904 (E, 56" away) has the same period - its light leaks into TESS's big pixels; same period as the known variable Gaia DR3 430799139788091904). WARNING: same period as the known variable Gaia DR3 430799139788091904 56" away; the signal is probably its light leaking in. Found automatically by hunt.py in TESS sector 18 (flagged in 3 sector(s)). Detection score 669.1. Not in VSX, ASAS-SN or ZTF variable catalogues at the time of the search; not in Gaia DR3's variable lists. Unchecked by hand yet: verify the period, nearby stars and a wider catalogue search. Updates: 2026-10-12 Rare-find check: Microlensing (rogue planet?) 2026-10-10 Found by the automatic search in TESS sector 18

The signal

Type	Eclipsing binary
Status	Rare, already known
Period (days)	7.91447
Period source	hunt.py on TESS QLP sector 18
Eclipse / dip depth	64.6%
Amplitude	4.2%
Data used	TESS sector 18 (QLP)

The star (Gaia & TESS)

Distance (pc)	2,191 (~7,147 light years)
Temperature (Gaia)	9,361 K
Size (Gaia)	2.62 x the Sun
Mass (Gaia)	2.40 x the Sun
Luminosity (Gaia)	47.38 x the Sun
Colour, Gaia BP-RP	0.87
RUWE (Gaia)	0.94 - fits a single star
Gaia G mag	13.91
TESS mag	13.47

Names & neighbours

TIC ID	284314749
Gaia DR3 ID	430799277227038336
SIMBAD name	not in SIMBAD
Nearest known variable	Gaia DR3 430799139788091904 (E, P = 3.9577 d), 56" away (same period!)
RA (deg)	9.61133
Dec (deg)	62.8355
Look it up	SIMBAD · VSX · ESASky · ExoFOP

Record

Found by	hunt.py (automatic)
Date	2026-10-10
Last update	2026-10-12

Where it sits among the stars

ESA Gaia colour and true brightness. Grey: every Star Log candidate. Orange: this star.

How to read this diagram →

Data files

Download everything (.zip)