HD 65750
star in the constellation Carina
HD 65750, also known as V341 Carinae, is a bright red giant star in the constellation Carina. It is surrounded by a prominent reflection nebula, known as IC 2220, nicknamed the Toby Jug Nebula.
Characteristics
Olin Jeuck Eggen and Norman Roy Stokes announced their discovery that the star's brightness varies, in 1970. It was given its variable star designation, V341 Carinae, in 1975. HD 65750 is located about 900 light years away, and has an apparent magnitude that varies between 6.2 and 7.1 and a metallicity just 40% of the Sun. When it is at its brightest, it is very faintly visible to the naked eye of a person with excellent observing conditions. It is part of the Diamond Cluster moving group.
The star has a radial velocity of 20 km/s. The star has a radius over 100 times wider than the Sun's; were it to replace the Sun, HD 65750 would extend past the orbit of Mercury.
Nebula
The nebula is unusual as the variations in its brightness appear to be unrelated to the host star.
The public source identifies “HD 65750” as star in the constellation Carina. This brief keeps that definition visible, then builds a research path around star, constellation and Carina.
Why this record matters
A short description can identify a subject without explaining its stakes. For “HD 65750”, the useful work is to connect “star in the constellation Carina” to the records capable of establishing context and consequence.
The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Sep 13, 2026. The linked authority identifier is Q15939272. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1970 and 1975.
A concise general-reference account can conceal disagreements about scope, terminology or the weight assigned to individual sources. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
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This entry incorporates text from “HD 65750” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.