THE OPEN CATALOG OF EVERYTHING ABOVE
Every object in the sky.
Indexed.
Search 227 943 stars, planets, galaxies and black holes. Learn, visualize, and build on an open API.
[
TONIGHT
] MAUNA KEA · DAYLIGHT NOWVenus43° up in the SSW · −4.77North America Nebula22° up in the NE · 4.00Arcturus68° up in the W · −0.05Neptune at opposition2026-09-26 · OPPOSITIONFull moon2026-09-26 · MOON
Everything above 20° from where you are, or the next eighteen months of dated events.
[
BROWSE THE CATALOG
] 11 CLASSES · 88 REGIONS01
Black holes ▸
52 catalogued
02
Neutron stars ▸
4393 timed
03
Stars ▸
124 295 catalogued
04
Planets ▸
8 catalogued
05
Exoplanets ▸
6366 confirmed
06
Galaxies ▸
64 157 catalogued
07
Nebulae ▸
433 catalogued
08
Star clusters ▸
935 catalogued
09
Moons ▸
459 catalogued
10
Asteroids ▸
22 350 tracked
11
Comets ▸
4076 tracked
12
Constellations ▸
88 regions of sky
[
WAYS IN
] RANKED LISTS AND CATALOGUESRANKED LISTS
What is nearest, brightest, largest, newest?Nearest
Black holes▸
Gaia BH1 — 1560 ly away
TOP 25
Nearest
Stars▸
Sun — 1.000 AU away
TOP 50
Nearest
Galaxies▸
Large Magellanic Cloud — 161 700 ly away
TOP 50
Nearest
Exoplanets▸
Proxima Cen b — 4.244 ly away
TOP 50
Brightest
Stars▸
Sun — apparent magnitude −26.74 (V)
TOP 50
Brightest
Galaxies▸
Large Magellanic Cloud — apparent magnitude 0.29 (V)
TOP 50
Brightest
Nebulae▸
Lower Sword — apparent magnitude 2.50 (V)
TOP 50
Brightest
Star clusters▸
Hyades — apparent magnitude 0.50 (V)
TOP 50
Largest
Black holes▸
TON 618 — 6.6×10¹⁰ M☉
TOP 23
Largest
Exoplanets▸
V2376 Ori b — 7.78 R♃ · 556 208 km
TOP 50
Largest
Moons▸
Ganymede — 0.41 R⊕ · 2631 km
TOP 25
Largest
Asteroids▸
1 Ceres — 469.7 km
TOP 50
Largest
Comets▸
C/2014 UN271 (Bernardinelli-Bernstein) — 68.5 km
TOP 25
Largest
Planets▸
Jupiter — 0.98 R♃ · 69 911 km
TOP 8
Most recent
Exoplanets▸
CD-35 2722 B b — found in 2026
TOP 50
Quasars▸
J0313-1806 — 244.8 Gly away
TOP 50
NUMBERED CATALOGUES
Which lists have a numbering of their own?[
START SOMEWHERE
] HAND-WRITTEN ENTRIES25143 Itokawa
Apollo near-Earth asteroid
distance unknown
433 Eros
Amor near-Earth asteroid
distance unknown
Castor
A1V+A2Vm white main-sequence star
50.87 ly
Mercury
Terrestrial planet
distance unknown
Helix Nebula
Planetary nebula
655.0 ly
Rosette A
Nebula
distance unknown
51 Peg b
Gas giant
50.43 ly
Carina Nebula
H II region
8500 ly
OPEN API
The whole catalog, one endpoint away
Free for research and education. No key, no account, open CORS. Filter the catalog, resolve any designation, or ask what is above your horizon right now.
READ THE DOCS →GET spacecatalog.org/api/v1/objects/sgr-a
{
"name": "Sagittarius A*",
"class": "supermassive_black_hole",
"mass_msun": 4.297e6,
"distance_ly": 26996
}