NGC 2440
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NGC 2440
NGC 2440 is a planetary nebula, one of many in our galaxy. Its central star, HD 62166, is possibly the hottest known white dwarf, about 400,000°F(200,000°C). The nebula is situated in the constellation Puppis.
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It was discovered by William Herschel on March 4, 1790. He described it as “a beautiful planetary nebula of a considerable degree of brightness, not very well defined.” The nebula is located about 1.23 kiloparsecs (3.79×1019 m) or about 4,000 light years from the Sun.
Observations
| Observation Log Information | |
|---|---|
| Log Index: | 471 |
| Session: | 155 |
| Date: | 1993-03-21 |
| Equipment: | C14w26mmPIossl |
| Location: | ABWCO |
Keywords: NGC 2440,110 Finest NGCs, Puppis, planetary nebula, NGC2440
February 7, 2024
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Roger Nelson
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