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EntityQ1987201· pop 23· linked from 155 articles

Q1987201

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first gamma-ray burst for which an afterglow was observed

Wikidata facts

Duration: 69
Distance from Earth: 8123000000
Image: GRB 970228.jpg

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catalog code: GRB 970228
time of discovery or invention: 1997-02-28
Commons category: GRB 970228
redshift: 0.6950
right ascension: 75.44458
declination: 11.78139
radial velocity: 144982

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Astronomical objects discovered in 1997 February 1997 Long-duration gamma-ray bursts Orion (constellation)