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
201–250 of 255,900 · All objects seen in the 7 nights
ObjectClassLast magPeakFirst seenLast seenNightsAlertsRel.RA, DecPartner
ZTF ZTF26abxsyfa Solar System MPC17.30 r17.302026-09-262026-09-26111.00151.0810, 9.6651
ZTF ZTF26abxsygp Solar System MPC16.54 r16.542026-09-262026-09-26111.00147.7207, 14.8670
ZTF ZTF26abxsyja Solar System MPC18.09 r18.092026-09-262026-09-26111.00148.9772, 8.1400
ZTF ZTF26abxsyjx Solar System MPC16.51 r16.512026-09-262026-09-26111.00148.2423, 10.5524
ZTF ZTF26abxsyls Solar System MPC17.94 r17.942026-09-262026-09-26111.00147.1372, 14.7987
ZTF ZTF26abxsyoa Solar System MPC17.06 r17.062026-09-262026-09-26111.00149.3860, 15.0009
ZTF ZTF26abxsyod Solar System MPC15.65 r15.652026-09-262026-09-26111.00152.5424, 9.1579
ZTF ZTF26abxsyok Solar System MPC14.95 r14.952026-09-262026-09-26111.00151.5051, 8.5866
ZTF ZTF26abxsyph Solar System MPC16.73 r16.732026-09-262026-09-26111.00149.8579, 10.2483
ZTF ZTF26abxsyvb Solar System MPC15.99 r15.992026-09-262026-09-26111.00149.5593, 13.4127
ZTF ZTF26abxsyve Solar System MPC17.95 r17.952026-09-262026-09-26110.98150.2769, 12.7740
ZTF ZTF17aacksuc EclBinfaded r14.532017-11-192026-09-26220.96157.6413, 25.2813
ZTF ZTF17aacksya RRLyraefaded r15.942017-11-212026-09-2618201.00154.9114, 26.3849
ZTF ZTF17aaclmpw RRLyraefaded r16.752017-11-192026-09-2638501.00158.2873, 26.8596
ZTF ZTF18aaadjhs EclBinfaded r17.942017-12-072026-09-2619241.00155.2622, 26.6551
ZTF ZTF18accnhrv EclBinfaded r15.562017-11-212026-09-26781.00157.5245, 23.8055
ZTF ZTF18accnhye Unknownfaded r—2018-11-032026-09-26110.65162.3347, 22.8765
ZTF ZTF18accnorv QSOfaded r18.122018-11-032026-09-2622431.00158.3052, 23.8777
ZTF ZTF26abxsxue Solar System MPC15.43 r15.432026-09-262026-09-26111.00159.1162, 23.4304
ZTF ZTF26abxsylx Solar System MPC18.01 r18.012026-09-262026-09-26111.00156.1927, 24.6681
ZTF ZTF26abxsyxb Solar System MPC14.57 r14.572026-09-262026-09-26111.00158.7454, 26.0417
ZTF ZTF17aaajfrh RRLyraefaded r16.192017-12-142026-09-2646691.00148.8928, 17.5482
ZTF ZTF17aaajftp RRLyraefaded r15.442017-12-142026-09-2656911.00150.4852, 16.1810
ZTF ZTF18aaacrcd RRLyraefaded r16.802017-12-092026-09-26731071.00149.2641, 20.5143
ZTF ZTF18acefmou Unknownfaded r17.872018-03-302026-09-2644611.00148.5364, 16.6607
ZTF ZTF26abxsylt Solar System MPC17.81 r17.812026-09-262026-09-26111.00148.6725, 17.4403
ZTF ZTF26abxsynv Solar System MPC14.75 r14.752026-09-262026-09-26111.00150.9778, 18.1220
ZTF ZTF26abxsypf Solar System MPC17.77 r17.772026-09-262026-09-26111.00151.8663, 17.1755
ZTF ZTF26abxsyrx Solar System MPC16.42 r16.422026-09-262026-09-26111.00155.7727, 17.5710
ZTF ZTF17aaajigy RRLyrae17.45 r16.102017-12-082026-09-2614191.00163.3239, 32.7751
ZTF ZTF17aaajihh EclBinfaded r15.802017-12-142026-09-26351.00162.4136, 33.7563
ZTF ZTF17aabwpuh Seyfert117.70 r17.042017-12-082026-09-2637651.00162.9329, 33.9908
ZTF ZTF18aaaddxx EclBinfaded r14.342018-01-112026-09-2615160.99167.9141, 31.0044
ZTF ZTF18aaakdsx RRLyraefaded r17.542017-12-162026-09-26791.00161.7944, 33.0047
ZTF ZTF18aabkscw Starfaded r18.232018-01-112026-09-26441.00167.5491, 29.7555
ZTF ZTF18aabssvj RRLyraefaded r17.192018-02-242026-09-2618261.00164.0883, 31.0351
ZTF ZTF18aabssyi Unknownfaded r17.802018-02-242026-09-26221.00161.0653, 30.4110
ZTF ZTF18aabuvac Unknownfaded r16.102018-02-072026-09-26220.88167.7414, 30.6643
ZTF ZTF18aabzpsj Unknown15.17 r14.932018-03-092026-09-2623311.00167.8096, 31.1595
ZTF ZTF18aceqwqv QSOfaded r18.872018-11-042026-09-2620271.00164.3854, 34.4545
ZTF ZTF26abxsyji Solar System candidate18.23 r18.232026-09-262026-09-26111.00164.5703, 31.6868
ZTF ZTF17aaaizbg EclBin17.40 r17.012017-12-142026-09-2662831.00141.1968, 4.9958
ZTF ZTF17aaaizej RRLyrae17.55 r16.272017-12-142026-09-2646761.00141.2251, 4.2637
ZTF ZTF17aaaizgc EclBinfaded r17.122017-12-142026-09-2643531.00144.0556, 7.5706
ZTF ZTF17aaajeiv EclBin16.12 r14.582017-12-142026-09-2662811.00144.5915, 2.9524
ZTF ZTF17aaajgui EclBinfaded r17.622017-12-142026-09-2636451.00144.2186, 7.7948
ZTF ZTF17aabtlxj CataclyV*17.49 r17.342017-12-142026-09-2653891.00141.5595, 1.0993
ZTF ZTF18aaahrsd Unknownfaded r—2018-11-172026-09-26110.88141.4169, 7.5155
ZTF ZTF18aabjihf EclBinfaded r15.862017-12-142026-09-26691261.00140.9112, 3.8833
ZTF ZTF18aabjjas CataclyV*AT 2019dbofaded r16.162017-12-142026-09-26831481.00146.1320, 3.9682