Transient Explorer

What am I looking at?

Every night the Rubin (LSST) and ZTF telescopes image the sky and flag anything that changed since last time: a supernova going off, a star flaring, an asteroid passing through. Each flag is an alert. The Fink broker classifies them, and this site shows what they are and where.

Pages

  • Dashboard: how many alerts and objects arrived in a window, what kinds, where on the sky, and the brightest new supernova candidates.
  • Sky: the map. Most of what follows is about it.
  • Objects: the same objects as a table you can sort, filter by the broker's label or TNS type, and page through; click one for its light curve and images.

Search

  • An object id (ZTF26abvkmbu, a Rubin id, or the first few characters), a TNS name (SN 2026abc), coordinates (35.71 -4.75 or 02:22:50 -04:45:00, add r=10' for a radius), a deep-drilling field (COSMOS), a class (SN Ia, EclBin) or any name astronomers use (M31).

On the map: zoom to go deeper

  • Whole sky (wider than 20°): a heatmap of how many objects were seen in each patch of sky.
  • Region (1°–20°): a finer heatmap plus numbered badges. The number is the count of objects, the color is their most common class, and a white ring means something new in the last night.
  • Objects (under 1°): one dot per object. A white ring means it was seen last night, and a white center means it has been detected only once so far. Click a dot for its light curve, classification and images.

Drag to pan, scroll or pinch to zoom, or click a badge to zoom into it.

Filters

  • Window: how far back to look, from last night to a year.
  • Active / new: objects detected in the window, or only those first seen in it.
  • Class: most alerts are solar-system objects (asteroids). Pick Non-Solar System to hide them and see what else is out there.
  • Brightness (≤ 20, ≤ 18, ≤ 16): only objects at least that bright. Smaller magnitudes are brighter.
  • History (2+ nights, …): only objects seen on several nights, which filters out one-off artifacts.

Classes

  • SN candidate
  • AGN / nuclear
  • Variable star
  • Solar system
  • Cataloged
  • Unknown
  • Low reliability
  • Other

The data is refreshed nightly. Every view is a link: on the map the URL records the position, zoom, filters and selected object, so Copy link shares exactly what you see.

Made by jgriz

Objects

Objects
Survey
Bucket
Clear
351–400 of 255,900 · All objects seen in the 7 nights
ObjectClassLast magPeakFirst seenLast seenNightsAlertsRel.RA, DecPartner
ZTF ZTF26abxsxay Solar System MPC18.62 r18.622026-09-262026-09-26111.00154.0276, 22.6695
ZTF ZTF26abxsxbs Solar System MPC18.72 r18.722026-09-262026-09-26111.00152.7273, 23.2104
ZTF ZTF26abxsxdf Solar System MPC15.65 r15.652026-09-262026-09-26111.00148.6509, 23.3309
ZTF ZTF26abxsxij Solar System candidate18.73 r18.732026-09-262026-09-26110.06148.3942, 23.0168
ZTF ZTF26abxsxik Solar System MPC18.36 r18.362026-09-262026-09-26111.00148.4107, 22.6599
ZTF ZTF26abxsxji Solar System MPC18.33 r18.332026-09-262026-09-26111.00150.6223, 22.6339
ZTF ZTF26abxsxkf Solar System MPC18.33 r18.332026-09-262026-09-26111.00152.1010, 25.9644
ZTF ZTF26abxsxkx Solar System MPC17.64 r17.642026-09-262026-09-26111.00147.6230, 28.9288
ZTF ZTF26abxsxob Solar System MPC18.49 r18.492026-09-262026-09-26110.95152.6867, 24.6136
ZTF ZTF26abxsxsz Solar System candidate18.49 r18.492026-09-262026-09-26110.41147.8876, 25.2495
ZTF ZTF26abxsxxg Solar System MPC18.51 r18.512026-09-262026-09-26111.00148.0701, 24.9450
ZTF ZTF26abxsxxq Solar System MPC18.79 r18.792026-09-262026-09-26111.00154.4222, 25.0028
ZTF ZTF26abxsxzg Solar System MPC18.63 r18.632026-09-262026-09-26111.00150.7313, 24.7434
ZTF ZTF18acqyvno EclBinfaded r17.642017-12-142026-09-2621261.00141.8010, -5.9549
ZTF ZTF18acrxorb RRLyraefaded r15.352018-11-052026-09-2656881.00144.7557, -3.9088
ZTF ZTF18acrxord RRLyrae18.05 r17.362018-11-052026-09-2667911.00145.1396, -4.1774
ZTF ZTF20achotjr QSOfaded r18.622019-02-262026-09-26761311.00140.3373, 0.6082
ZTF ZTF17aaajeun RRLyrae18.35 r18.262017-12-142026-09-2645571.00141.4048, 12.3604
ZTF ZTF17aaajexa EclBin17.07 r16.112017-12-142026-09-2632391.00139.8633, 9.1259
ZTF ZTF17aaaplhs EclBin16.33 r15.882017-12-142026-09-2637481.00142.8893, 10.7651
ZTF ZTF17aaaplll EclBinfaded r14.722017-12-142026-09-2648541.00143.9473, 10.5350
ZTF ZTF17aabheah RRLyraefaded r15.592017-12-142026-09-2660971.00140.4683, 12.0441
ZTF ZTF18aaacpcn EclBinfaded r18.202018-01-112026-09-2636441.00145.5201, 8.9221
ZTF ZTF18aaacyii RRLyrae15.56 r15.082017-12-142026-09-2637471.00142.0285, 9.1245
ZTF ZTF18aaaoaqd Variable*17.78 r17.402018-01-112026-09-2642501.00145.1943, 11.2670
ZTF ZTF18aaaqpwc EclBinfaded r15.632018-01-142026-09-2622311.00143.4528, 8.5974
ZTF ZTF18aabjizj RRLyraefaded r16.172017-12-142026-09-2631421.00141.0509, 10.9252
ZTF ZTF18acefhef Star18.34 r17.682018-05-252026-09-2628371.00142.2809, 11.4354
ZTF ZTF18acgvizz EclBin_Candidate15.07 r14.322018-03-302026-09-2635491.00144.0441, 9.4688
ZTF ZTF18acpdbil QSOfaded r19.012018-11-062026-09-2664931.00145.1530, 11.4741
ZTF ZTF18acvgudb Starfaded r17.032018-04-022026-09-2636521.00141.3760, 11.2721
ZTF ZTF18adbhbtr QSOfaded r18.582018-11-032026-09-2634421.00141.8012, 12.7497
ZTF ZTF19aacxmal Unknownfaded r19.242019-01-102026-09-2628341.00144.7727, 8.9781
ZTF ZTF20aairtjy QSOfaded r18.812018-04-022026-09-2643661.00142.0674, 8.6943
ZTF ZTF20aaortxr Solar System MPC15.37 r15.372020-02-192026-09-26111.00145.6870, 9.5989
ZTF ZTF20aaryvvq EclBinfaded r—2017-12-152026-09-26110.99140.5793, 9.4816
ZTF ZTF20aavplmv AGN18.52 r18.522018-12-292026-09-26681111.00143.5500, 10.7429
ZTF ZTF22aadmnwz QSOfaded r19.072022-02-262026-09-2648671.00142.3929, 14.4797
ZTF ZTF25aaeomkz Solar System MPC18.09 r18.092025-02-032026-09-26111.00140.9990, 12.9065
ZTF ZTF26abxswsb Solar System MPC17.59 r17.592026-09-262026-09-26111.00145.3237, 8.9740
ZTF ZTF26abxswsl Solar System MPC18.28 r18.282026-09-262026-09-26111.00145.4208, 8.7222
ZTF ZTF26abxswwu Solar System MPC17.83 r17.832026-09-262026-09-26111.00144.2677, 10.9870
ZTF ZTF26abxswwv Solar System MPC18.67 r18.672026-09-262026-09-26111.00144.3562, 11.4205
ZTF ZTF26abxswxr Solar System MPC18.08 r18.082026-09-262026-09-26111.00140.9309, 12.2647
ZTF ZTF26abxswxs Solar System MPC18.88 r18.882026-09-262026-09-26111.00141.0501, 12.3468
ZTF ZTF26abxswzn Solar System MPC18.18 r18.182026-09-262026-09-26111.00141.3346, 14.5195
ZTF ZTF26abxswzq Solar System MPC18.50 r18.502026-09-262026-09-26111.00141.4362, 14.4066
ZTF ZTF26abxswzs Solar System MPC18.46 r18.462026-09-262026-09-26111.00141.8802, 14.1133
ZTF ZTF26abxswzx Solar System MPC16.84 r16.842018-02-242026-09-26111.00141.7136, 12.3906
ZTF ZTF26abxswzy Solar System MPC18.76 r18.762026-09-262026-09-26111.00141.4929, 12.1666