TIC 258061691

Transit candidateRare, already known

Rare & notable finds

Something unusual, worth a look - less certain than a significant find. How these checks work →

Already known: the catalogued variable CSS_J135307.1+290851 (EA, 51" away) has the same period - its light leaks into TESS's big pixels; same period as the known variable CSS_J135307.1+290851. The rare-find check confirms what is on record - still nice, but not a new discovery.

Changing transit depth hint
The dip depth changes by 42% between transits - a disintegrating planet trailing dust, starspots, or light from another star mixing in.

Checked, nothing found (8)

Microlensing (rogue planet?) · Exocomet-shaped dip · Habitable zone & size · Transit timing (TTV) · Transit duration (TDV) · Lopsided transit · Dimming beside the transit · Type of star

Checked 2026-10-11 17:03 on NVIDIA GeForce RTX 4070, using every TESS sector of this star. All results (.json)

Notes

Probably noise or an instrument effect. Rare, already known: Changing transit depth (the catalogued variable CSS_J135307.1+290851 (EA, 51" away) has the same period - its light leaks into TESS's big pixels; same period as the known variable CSS_J135307.1+290851). WARNING: same period as the known variable CSS_J135307.1+290851 51" away; the signal is probably its light leaking in. Found automatically by hunt.py in TESS sector 23 (flagged in 1 sector(s)). Detection score 69.5. 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: 2026-10-11 Planet check: Probably noise or an instrument effect 2026-10-11 Rare-find check: Changing transit depth 2026-10-11 Found by the automatic search in TESS sector 23

The signal

Type	Transit candidate
Status	Rare, already known
Period (days)	1.18046
Period source	hunt.py on TESS QLP sector 23
Eclipse / dip depth	1.8%
Amplitude	1.4%
Data used	TESS sector 23 (QLP)

Planet check

Verdict	Probably noise or an instrument effect ExoFOP check plot all test results light curve data
Size if it's a planet	~21.9 Earth radii (~1.95 Jupiter)

The star (Gaia & TESS)

Distance (pc)	714 (~2,329 light years)
Temperature (Gaia)	5,726 K
Size (Gaia)	1.52 x the Sun
Mass (Gaia)	1.02 x the Sun
Luminosity (Gaia)	2.23 x the Sun
Colour, Gaia BP-RP	0.78
RUWE (Gaia)	0.96 - fits a single star
Gaia G mag	13.05
TESS mag	12.65

Names & neighbours

TIC ID	258061691
Gaia DR3 ID	1452322991912220416
SIMBAD name	not in SIMBAD
Nearest known variable	CSS_J135307.1+290851 (EA, P = 2.3596 d), 51" away (same period!)
RA (deg)	208.282
Dec (deg)	29.1618
Look it up	SIMBAD · VSX · ESASky · ExoFOP

Record

Found by	hunt.py (automatic)
Date	2026-10-11
Last update	2026-10-11

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)