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89.1
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float64
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discovery_date
timestamp[us]date
1006-04-17 00:00:00
2020-12-05 00:00:00
⌀
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98.9k
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2.02k
⌀
AT1991bm
18:15:14.404
+47:31:51.55
273.810017
47.530986
0.040188
Candidate
UGC 11180
14
-22.2727
1991-08-06T00:00:00
183.269
null
Filipp Romanov
1,991
AT1992bv
03:15:05.472
-54:49:16.40
48.7728
-54.821222
0.0275
Candidate
IC 1908
16.8
-18.64
1992-11-19T00:00:00
124.3
null
William Keel, Judy Schmidt, Julianne Dalcanton
1,992
AT1992bw
00:06:02.553
+14:24:50.72
1.510638
14.414089
0.017773
Candidate
UGC 43
17.6
-16.8888
1992-08-08T00:00:00
79.7238
null
Filipp Romanov
1,992
AT1999gy
16:19:58.050
-01:10:29.09
244.991875
-1.174747
null
Candidate
null
17.9
null
1999-03-21T00:00:00
null
0.092
Claude Cornen
1,999
AT1999gz
11:57:31.944
+00:48:59.85
179.3831
0.816625
0.06227
Candidate
null
20.4
-16.835
1999-03-20T00:00:00
288.47
null
Galaxy Zoo
1,999
AT1999ha
13:56:24.374
-00:14:54.80
209.101558
-0.248556
0.02975
Candidate
NGC 5366
20.2
-15.414
1999-03-21T00:00:00
134.64
null
Galaxy Zoo
1,999
AT1999hb
11:51:21.421
-00:58:18.49
177.839254
-0.971803
0.083
Candidate
null
20.7
-17.2
1999-03-22T00:00:00
390
null
Galaxy Zoo
1,999
GRB 910421
18:02:43.2
+24:45:36
270.68
24.76
null
LGRB
null
null
null
1991-04-21T00:00:00
null
0.0951
null
1,991
GRB 910423
12:53:52.8
-08:22:48
193.47
-8.38
null
LGRB
null
null
null
1991-04-23T00:00:00
null
0.0322
null
1,991
GRB 910424
13:25:14.4
-45:24:36
201.31
-45.41
null
LGRB
null
null
null
1991-04-24T00:00:00
null
0.0735
null
1,991
GRB 910425A
06:05:09.6
-22:46:12
91.29
-22.77
null
LGRB
null
null
null
1991-04-25T00:00:00
null
0.0364
null
1,991
GRB 910425B
22:23:45.6
+25:46:12
335.94
25.77
null
LGRB
null
null
null
1991-04-25T00:00:00
null
0.0559
null
1,991
GRB 910426
05:03:16.8
-19:30:36
75.82
-19.51
null
LGRB
null
null
null
1991-04-26T00:00:00
null
0.0301
null
1,991
GRB 910427
05:15:26.4
-15:35:24
78.86
-15.59
null
LGRB
null
null
null
1991-04-27T00:00:00
null
0.0675
null
1,991
GRB 910430
09:03:12
+02:43:48
135.8
2.73
null
LGRB
null
null
null
1991-04-30T00:00:00
null
0.046
null
1,991
GRB 910501
08:26:09.6
-00:13:48
126.54
-0.23
null
LGRB
null
null
null
1991-05-01T00:00:00
null
0.0424
null
1,991
GRB 910503
05:49:48
+38:44:24
87.45
38.74
null
LGRB
null
null
null
1991-05-03T00:00:00
null
0.3955
null
1,991
GRB 910507
19:58:12
-44:52:48
299.55
-44.88
null
LGRB
null
null
null
1991-05-07T00:00:00
null
0.0471
null
1,991
GRB 910509
22:37:00
+38:15:36
339.25
38.26
null
LGRB
null
null
null
1991-05-09T00:00:00
null
0.1211
null
1,991
GRB 910511
17:45:55.2
+58:18:00.0
266.48
58.3
null
LGRB
null
null
null
1991-05-11T00:00:00
null
0.0332
null
1,991
GRB 910517A
07:34:19.2
+49:10:12
113.58
49.17
null
LGRB
null
null
null
1991-05-17T00:00:00
null
0.0715
null
1,991
GRB 910518B
16:36:04.8
-11:46:12
249.02
-11.77
null
LGRB
null
null
null
1991-05-18T00:00:00
null
0.4476
null
1,991
GRB 910521A
07:15:43.2
-33:45:00
108.93
-33.75
null
LGRB
null
null
null
1991-05-21T00:00:00
null
0.1216
null
1,991
GRB 910522
09:10:52.8
-50:53:24
137.72
-50.89
null
LGRB
null
null
null
1991-05-22T00:00:00
null
3.466
null
1,991
GRB 910523A
07:07:57.6
+00:21:40
106.99
0.361111
null
LGRB
null
null
null
1991-05-23T00:00:00
null
0.3391
null
1,991
GRB 910523B
23:31:50.4
+24:53:24
352.96
24.89
null
LGRB
null
null
null
1991-05-23T00:00:00
null
0.0638
null
1,991
GRB 910525
14:24:07.2
-62:49:12
216.03
-62.82
null
LGRB
null
null
null
1991-05-25T00:00:00
null
1.9342
null
1,991
GRB 910528
16:02:21.6
+43:58:12
240.59
43.97
null
LGRB
null
null
null
1991-05-28T00:00:00
null
0.0109
null
1,991
GRB 910529
13:41:43.2
-27:24:00.0
205.43
-27.4
null
LGRB
null
null
null
1991-05-29T00:00:00
null
0.0571
null
1,991
GRB 910601
20:40:28.8
+32:20:24
310.12
32.34
null
LGRB
null
null
null
1991-06-01T00:00:00
null
0.9934
null
1,991
GRB 910602B
09:31:02.4
+53:59:24
142.76
53.99
null
LGRB
null
null
null
1991-06-02T00:00:00
null
0.0139
null
1,991
GRB 910607A
05:15:02.4
-09:21:36
78.76
-9.36
null
LGRB
null
null
null
1991-06-07T00:00:00
null
0.1342
null
1,991
GRB 910612
22:28:16.8
+15:25:12
337.07
15.42
null
LGRB
null
null
null
1991-06-12T00:00:00
null
0.0484
null
1,991
GRB 910614A
11:39:00
-12:57:00.0
174.75
-12.95
null
LGRB
null
null
null
1991-06-14T00:00:00
null
0.0315
null
1,991
GRB 910619
01:24:40.8
-36:34:12
21.17
-36.57
null
LGRB
null
null
null
1991-06-19T00:00:00
null
0.0182
null
1,991
GRB 910620A
04:31:40.8
+22:30:00
67.92
22.5
null
LGRB
null
null
null
1991-06-20T00:00:00
null
0.7134
null
1,991
GRB 910620B
04:23:14.4
+65:58:12
65.81
65.97
null
LGRB
null
null
null
1991-06-20T00:00:00
null
0.5931
null
1,991
GRB 910621A
21:47:28.8
-08:26:24
326.87
-8.44
null
LGRB
null
null
null
1991-06-21T00:00:00
null
0.0394
null
1,991
GRB 910621B
15:07:40.8
-12:26:24
226.92
-12.44
null
LGRB
null
null
null
1991-06-21T00:00:00
null
0.0924
null
1,991
GRB 910622
00:33:50
-32:48:00.0
8.458333
-32.8
null
LGRB
null
null
null
1991-06-22T00:00:00
null
0.0121
null
1,991
GRB 910627
13:11:57.6
-02:28:48
197.99
-2.48
null
LGRB
null
null
null
1991-06-27T00:00:00
null
0.0277
null
1,991
GRB 910629A
04:36:57.6
-58:25:12
69.24
-58.42
null
LGRB
null
null
null
1991-06-29T00:00:00
null
0.0104
null
1,991
GRB 910629B
04:14:04.8
+08:24:00
63.52
8.4
null
LGRB
null
null
null
1991-06-29T00:00:00
null
0.2324
null
1,991
GRB 910630
20:18:48
+35:07:48
304.7
35.13
null
LGRB
null
null
null
1991-06-30T00:00:00
null
2.7833
null
1,991
GRB 910701
04:05:24
-53:25:12
61.35
-53.42
null
LGRB
null
null
null
1991-07-01T00:00:00
null
0.0104
null
1,991
GRB 910702A
17:00:16.8
+29:03:00
255.07
29.05
null
LGRB
null
null
null
1991-07-02T00:00:00
null
0.0427
null
1,991
GRB 910706
17:06:31.2
-43:41:24
256.63
-43.69
null
LGRB
null
null
null
1991-07-06T00:00:00
null
2.1582
null
1,991
GRB 910708
00:48:21.6
+15:07:12
12.09
15.12
null
LGRB
null
null
null
1991-07-08T00:00:00
null
0.0719
null
1,991
GRB 910709
11:31:04.8
+81:40:12
172.77
81.67
null
LGRB
null
null
null
1991-07-09T00:00:00
null
0.0358
null
1,991
GRB 910712
20:14:31.2
-57:05:24
303.63
-57.09
null
LGRB
null
null
null
1991-07-12T00:00:00
null
0.0405
null
1,991
GRB 910714
16:10:04.8
+22:11:24
242.52
22.19
null
LGRB
null
null
null
1991-07-14T00:00:00
null
0.1383
null
1,991
GRB 910717A
16:39:21.6
-58:12:36
249.84
-58.21
null
LGRB
null
null
null
1991-07-17T00:00:00
null
0.2532
null
1,991
GRB 910718A
23:22:09.6
+59:44:24
350.54
59.74
null
LGRB
null
null
null
1991-07-18T00:00:00
null
1.3343
null
1,991
GRB 910718B
05:31:12
+22:46:48
82.8
22.78
null
LGRB
null
null
null
1991-07-18T00:00:00
null
0.5134
null
1,991
GRB 910719
16:23:24
+28:27:36
245.85
28.46
null
LGRB
null
null
null
1991-07-19T00:00:00
null
0.0374
null
1,991
GRB 910721B
21:02:04.8
-14:17:24
315.52
-14.29
null
LGRB
null
null
null
1991-07-21T00:00:00
null
0.0338
null
1,991
GRB 910725B
18:12:43.2
+14:07:48
273.18
14.13
null
LGRB
null
null
null
1991-07-25T00:00:00
null
0.1232
null
1,991
GRB 910730A
16:38:09.6
-75:13:12
249.54
-75.22
null
LGRB
null
null
null
1991-07-30T00:00:00
null
0.0639
null
1,991
GRB 910730C
20:55:31.2
+16:55:48
313.88
16.93
null
LGRB
null
null
null
1991-07-30T00:00:00
null
0.0864
null
1,991
GRB 910802B
13:18:16.8
-53:25:12
199.57
-53.42
null
LGRB
null
null
null
1991-08-02T00:00:00
null
0.4022
null
1,991
GRB 910805
20:53:04.8
-51:18:00.0
313.27
-51.3
null
LGRB
null
null
null
1991-08-05T00:00:00
null
0.0263
null
1,991
GRB 910807
10:15:24
+06:29:24
153.85
6.49
null
LGRB
null
null
null
1991-08-07T00:00:00
null
0.0203
null
1,991
GRB 910809A
15:49:33.6
+38:49:12
237.39
38.82
null
LGRB
null
null
null
1991-08-09T00:00:00
null
0.0098
null
1,991
GRB 910809B
13:01:43.2
+19:22:12
195.43
19.37
null
LGRB
null
null
null
1991-08-09T00:00:00
null
0.0238
null
1,991
GRB 910809C
18:47:50.4
+64:44:24
281.96
64.74
null
LGRB
null
null
null
1991-08-09T00:00:00
null
0.0436
null
1,991
GRB 910813
02:37:38.4
-64:29:24
39.41
-64.49
null
LGRB
null
null
null
1991-08-13T00:00:00
null
0.0232
null
1,991
GRB 910814A
03:52:02.4
+45:13:12
58.01
45.22
null
LGRB
null
null
null
1991-08-14T00:00:00
null
0.5415
null
1,991
GRB 910814C
23:05:24
+30:25:48
346.35
30.43
null
LGRB
null
null
null
1991-08-14T00:00:00
null
0.0478
null
1,991
GRB 910815
09:31:04.8
-36:03:00.0
142.77
-36.05
null
LGRB
null
null
null
1991-08-15T00:00:00
null
0.1647
null
1,991
GRB 910816A
14:44:07.2
-59:05:24
221.03
-59.09
null
LGRB
null
null
null
1991-08-16T00:00:00
null
5.2632
null
1,991
GRB 910816B
11:30:24
+01:28:48
172.6
1.48
null
LGRB
null
null
null
1991-08-16T00:00:00
null
0.0222
null
1,991
GRB 910817
06:00:26.4
+27:04:48
90.11
27.08
null
LGRB
null
null
null
1991-08-17T00:00:00
null
0.4891
null
1,991
GRB 910818
17:53:21.6
-27:05:24
268.34
-27.09
null
LGRB
null
null
null
1991-08-18T00:00:00
null
14.7502
null
1,991
GRB 910821
19:29:50.4
-63:31:12
292.46
-63.52
null
LGRB
null
null
null
1991-08-21T00:00:00
null
0.0501
null
1,991
GRB 910822
17:59:28.8
+43:44:24
269.87
43.74
null
LGRB
null
null
null
1991-08-22T00:00:00
null
0.0408
null
1,991
GRB 910823
07:02:36
+08:03:36
105.65
8.06
null
LGRB
null
null
null
1991-08-23T00:00:00
null
0.0894
null
1,991
GRB 910829
03:56:07.2
+22:57:36
59.03
22.96
null
LGRB
null
null
null
1991-08-29T00:00:00
null
0.1768
null
1,991
GRB 910902
19:56:19.2
-07:42:00
299.08
-7.7
null
LGRB
null
null
null
1991-09-02T00:00:00
null
0.1335
null
1,991
GRB 910903
15:53:21.6
+13:06:00.0
238.34
13.1
null
LGRB
null
null
null
1991-09-03T00:00:00
null
0.0381
null
1,991
GRB 910904
23:36:36
-17:05:24
354.15
-17.09
null
LGRB
null
null
null
1991-09-04T00:00:00
null
0.0227
null
1,991
GRB 910905
24:00:00
-81:03:00.0
360
-81.05
null
LGRB
null
null
null
1991-09-05T00:00:00
null
0.082
null
1,991
GRB 910907
09:06:12
-28:13:48
136.55
-28.23
null
LGRB
null
null
null
1991-09-07T00:00:00
null
0.1476
null
1,991
GRB 910908
15:04:24
-15:31:48
226.1
-15.53
null
LGRB
null
null
null
1991-09-08T00:00:00
null
0.0976
null
1,991
GRB 910914
11:21:14.4
-33:24:00.0
170.31
-33.4
null
LGRB
null
null
null
1991-09-14T00:00:00
null
0.0671
null
1,991
GRB 910923
03:30:07.2
-22:34:12
52.53
-22.57
null
LGRB
null
null
null
1991-09-23T00:00:00
null
0.0296
null
1,991
GRB 910925
17:42:40.8
-29:15:36
265.67
-29.26
null
LGRB
null
null
null
1991-09-25T00:00:00
null
11.0615
null
1,991
GRB 910926A
10:28:48
-01:21:36
157.2
-1.36
null
LGRB
null
null
null
1991-09-26T00:00:00
null
0.0436
null
1,991
GRB 910926B
23:04:16.8
+21:21:36
346.07
21.36
null
LGRB
null
null
null
1991-09-26T00:00:00
null
0.2661
null
1,991
GRB 910927B
03:20:38.4
-39:39:00.0
50.16
-39.65
null
LGRB
null
null
null
1991-09-27T00:00:00
null
0.0129
null
1,991
GRB 910930A
06:13:43.2
+44:30:36
93.43
44.51
null
LGRB
null
null
null
1991-09-30T00:00:00
null
0.1313
null
1,991
GRB 910930B
08:47:12
-20:37:12
131.8
-20.62
null
LGRB
null
null
null
1991-09-30T00:00:00
null
0.1565
null
1,991
GRB 911004
23:18:57.6
+62:57:00
349.74
62.95
null
LGRB
null
null
null
1991-10-04T00:00:00
null
1.3572
null
1,991
GRB 911005
15:43:12
+14:43:48
235.8
14.73
null
LGRB
null
null
null
1991-10-05T00:00:00
null
0.0387
null
1,991
GRB 911016B
20:00:14.4
-04:09:36
300.06
-4.16
null
LGRB
null
null
null
1991-10-16T00:00:00
null
0.3461
null
1,991
GRB 911022
08:15:38.4
+70:20:24
123.91
70.34
null
LGRB
null
null
null
1991-10-22T00:00:00
null
0.0292
null
1,991
GRB 911024
13:54:36
+38:21:36
208.65
38.36
null
LGRB
null
null
null
1991-10-24T00:00:00
null
0.0196
null
1,991
GRB 911026
04:58:43.2
-22:16:12
74.68
-22.27
null
LGRB
null
null
null
1991-10-26T00:00:00
null
0.029
null
1,991
GRB 911027B
08:28:52.8
+74:07:12
127.22
74.12
null
LGRB
null
null
null
1991-10-27T00:00:00
null
0.0191
null
1,991
GRB 911031A
18:58:09.6
+21:20:24
284.54
21.34
null
LGRB
null
null
null
1991-10-31T00:00:00
null
0.3223
null
1,991
GRB 911031B
19:55:33.6
-28:53:24
298.89
-28.89
null
LGRB
null
null
null
1991-10-31T00:00:00
null
0.119
null
1,991
End of preview. Expand in Data Studio

Open Supernova Catalog

Part of the Astronomy Datasets collection on Hugging Face.

Update Supernovae Updated

All 72,145 known supernovae and supernova candidates from the Open Supernova Catalog, spanning discoveries from 1006 to 2020.

Dataset description

The Open Supernova Catalog (OSC) is a comprehensive, community-maintained database of all known supernovae and supernova candidates. It aggregates data from professional surveys (ZTF, ASAS-SN, Pan-STARRS, SDSS), amateur discoveries, and historical records.

Each record includes sky coordinates, spectroscopic classification, redshift, host galaxy, peak apparent magnitude, and extinction (E(B-V)).

Schema

Column Type Description
name string Primary name (e.g., "SN2011fe", "AT2024abc")
ra_hms string Right ascension in HH:MM:SS.ss format
dec_dms string Declination in +DD:MM:SS.ss format
ra float64 Right ascension in decimal degrees
dec float64 Declination in decimal degrees
redshift float64 Spectroscopic or photometric redshift
claimed_type string Classification (Ia, II, Ib, Ic, SLSN, etc.)
host_galaxy string Host galaxy name
peak_mag float64 Peak apparent magnitude
peak_abs_mag float64 Peak absolute magnitude
discovery_date datetime Date of discovery
discovery_year int64 Year of discovery
luminosity_distance_mpc float64 Luminosity distance in Mpc
ebv float64 Milky Way E(B-V) extinction
discoverer string Person or survey that discovered the SN

Quick stats

  • 72,145 supernovae (1006--2020)
  • 68,173 with sky coordinates
  • 29,068 with redshift measurements
  • 57,130 with spectroscopic classification
  • 19,998 with identified host galaxy

Top classifications

Type Count
Candidate 31,623
Ia 13,805
II 5,275
LGRB 2,402
II P 537
Ic 464
IIn 447
Ib 317
Ia? 222
IIb 222

Usage

from datasets import load_dataset

ds = load_dataset("juliensimon/open-supernova-catalog", split="train")
df = ds.to_pandas()

# Type Ia supernovae with redshift
ia = df[(df["claimed_type"] == "Ia") & df["redshift"].notna()]

# Nearby supernovae (z < 0.01)
nearby = df[df["redshift"] < 0.01].sort_values("redshift")

# Discoveries per year
per_year = df["discovery_year"].dropna().value_counts().sort_index()

# Supernovae in a sky region (e.g., Virgo cluster area)
virgo = df[
    (df["ra"].between(180, 195)) & (df["dec"].between(5, 20))
]

Data source

Open Supernova Catalog via the astrocatalogs/supernovae GitHub repository. The catalog aggregates data from IAU Circulars, The Astronomer's Telegram, the Transient Name Server (TNS), and dozens of survey pipelines.

Update schedule

Weekly (Mondays at 07:00 UTC) via GitHub Actions.

Related datasets

Pipeline

Source code: juliensimon/space-datasets

Citation

@article{open_supernova_catalog,
  author = {Guillochon, James and Parrent, Jerod and Kelley, Luke Zoltan and Margutti, Raffaella},
  title = {An Open Catalog for Supernova Data},
  journal = {The Astrophysical Journal},
  year = {2017},
  volume = {835},
  number = {1},
  pages = {64},
  doi = {10.3847/1538-4357/835/1/64}
}

License

CC-BY-4.0

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