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
101–150 of 180 · TNS-classified objects seen in the 7 nights
ObjectClassLast magPeakFirst seenLast seenNightsAlertsRel.RA, DecPartner
ZTF ZTF26abmauno AmbiguousSN IIn18.23 r18.042026-08-052026-09-2512231.005.3646, -25.2768
ZTF ZTF26abqccag SN candidateSN Ia19.07 r18.122026-08-222026-09-2511181.0011.0606, -25.1086
ZTF ZTF26abdpxpi UnknownSN IIn19.43 r19.122026-06-232026-09-2545691.00358.6261, 14.4052
ZTF ZTF26abtjult UnknownSN Ia17.11 r17.052018-11-132026-09-2512121.001.6944, 8.4261
ZTF ZTF18abtqomq SupernovaSN IIfaded r19.482017-12-082026-09-2558591.0012.0226, -2.7898
ZTF ZTF22aaqccka UnknownAGN18.06 r17.562019-10-172026-09-25911501.006.1696, -0.5054
ZTF ZTF26abapcdo UnknownSN IIn18.31 r17.862025-07-312026-09-2545731.0010.8599, -3.8495
ZTF ZTF26abenjes SN candidateSN II18.78 r18.482026-07-012026-09-2543681.008.1655, -4.9936
ZTF ZTF26ablsebw SN candidateSLSN-II17.73 r17.672026-08-042026-09-2533521.005.0793, -9.9705
ZTF ZTF26abrqjrn AmbiguousSN Ia18.18 r17.832026-09-012026-09-2518281.004.7994, -13.2112
ZTF ZTF18abspszv SupernovaSN Iafaded r18.322018-07-142026-09-2530471.00353.4893, -26.4470
ZTF ZTF26abnkalp SN candidateSN Ia18.11 r17.222026-08-112026-09-2513191.00356.1169, -26.8696
ZTF ZTF26absltop SN candidateSN Ia18.82 r18.632026-09-052026-09-25691.00356.8386, -25.6317
ZTF ZTF18abskoyh UnknownSN IIfaded g19.102018-07-162026-09-2579791.00315.6304, -5.6250
ZTF ZTF18abmqupd SupernovaSN IIfaded g19.112018-05-082026-09-25441.00307.2074, -4.3825
ZTF ZTF18abnuexr UnknownSN IIfaded g18.672018-05-082026-09-251302141.00307.0502, -3.1363
ZTF ZTF19adkrhbf Seyfert2AGNfaded g17.422018-09-072026-09-2568851.00305.5098, -18.3830
ZTF ZTF20aayulzl UnknownVarstar18.83 g17.022020-05-082026-09-251101671.00282.0310, -6.1781
ZTF ZTF18adndeom SupernovaSN IIfaded r19.032018-06-302026-09-25981031.00351.3174, 13.9341
ZTF ZTF26absuzhq AmbiguousSN Ia18.56 r18.492026-09-102026-09-2511191.00269.5062, 12.7922
ZTF ZTF26abwpgne UnknownSN Ia19.00 g19.002026-09-182026-09-23331.0042.4165, 9.0174
ZTF ZTF18abuxiwj UnknownAGN19.84 g19.562018-09-132026-09-23441.0028.5956, -5.9973
ZTF ZTF18abolvoh UnknownSN Iafaded g18.112017-12-082026-09-23941331.00343.5488, 5.0641
ZTF ZTF26abqtiyr UnknownSN II19.13 g18.542026-08-252026-09-2313171.0026.8990, -19.2538
ZTF ZTF26abrgfyd UnknownSN Ia18.60 g17.952026-08-302026-09-23551.0019.6187, -27.0966
ZTF ZTF18acayrru UnknownSN Iafaded g19.052018-07-062026-09-2371831.00353.1448, 8.7528
ZTF ZTF18adndegy UnknownSN Iafaded g18.452018-07-032026-09-23831261.00351.2359, 9.4313
ZTF ZTF18abxyzhr UnknownSN IInfaded g18.542018-07-062026-09-23821411.00354.8801, -3.1486
ZTF ZTF18abtmgfn UnknownSN IInfaded g16.442018-07-062026-09-23841401.000.9608, -11.4746
ZTF ZTF26aboufca AmbiguousSN Ia20.17 r19.282026-08-152026-09-2318231.0028.5818, 28.7954
ZTF ZTF25acggpbd UnknownSN IIn19.76 r16.882025-12-072026-09-2329391.0027.7287, -3.9290
ZTF ZTF18abqzptp UnknownSN Ia19.31 r18.532018-09-192026-09-2321471.0015.8821, -12.5466
ZTF ZTF26abxahuo Solar System candidateSN II19.24 r19.242026-09-232026-09-23110.9814.6964, -20.8407
ZTF ZTF18abskzjm SupernovaSN Iafaded r19.612017-12-082026-09-2350501.0012.7358, 3.4987
ZTF ZTF26abmbdic AmbiguousSN Ia19.38 r17.922026-08-042026-09-2329421.00359.4572, -17.5626
ZTF ZTF26abpsgoi AmbiguousSN Ia-91T-like19.65 r18.852026-08-192026-09-2321471.0012.4308, -19.7357
ZTF ZTF18abvpnnb QSOAGN17.75 r17.392017-12-142026-09-23971601.00338.2298, -3.0473Rubin
ZTF ZTF26abozmxg SN candidateSN Ia-91T-like20.12 r19.352026-08-152026-09-2317251.0016.1132, 6.1537
ZTF ZTF18abomklq SupernovaSN Ia-91T-likefaded r17.812017-12-142026-09-23961071.00356.1144, 5.6636
ZTF ZTF21abycgve UnknownAGN19.50 r19.192019-06-282026-09-2343641.00355.4046, -6.4738
ZTF ZTF26abdiuka UnknownSN Ia-91T-like19.41 r18.362026-06-222026-09-2337581.00357.6378, -19.2337
ZTF ZTF26abrxnoq AmbiguousSN Ia17.58 r17.362026-09-032026-09-2314231.00354.0008, -19.4713
ZTF ZTF18absyyig SupernovaSN Iafaded r18.992017-12-082026-09-231021021.00338.2876, 4.1298
ZTF ZTF26abaodml UnknownSN IIP19.48 r19.022020-12-122026-09-23781271.00328.9179, 1.9385
ZTF ZTF18admqhac Supernova_CandidateSN Icfaded r19.362017-12-082026-09-23741081.00345.3011, 4.2601
ZTF ZTF26abhlzkx SN candidateSN IIn19.51 r19.322026-07-072026-09-2334701.00344.4405, 0.9742
ZTF ZTF21abixkyz UnknownCV17.59 g16.162018-11-212026-09-2319241.00299.6409, 8.9935
ZTF ZTF22abegjtx UnknownTDE19.54 g18.922019-01-052026-09-2210101.005.9868, -14.4231
ZTF ZTF18admwsay SupernovaSN Iafaded r18.982018-08-072026-09-2250511.0026.0345, 7.9771
ZTF ZTF26ablihla SN candidateSN Ia20.23 r18.902026-07-302026-09-2224271.0017.0744, -10.5554