TomKrajci 🇺🇦 🏳️🌈 🏳️⚧️<p>A star with a weird color - Nova Lupi 2025 (V462 Lupi)</p><p>1st photo is not annotated. Can you find the nova?</p><p>2nd photo is annotated.</p><p>3rd photo was deliberately mis-focused so that stars were larger disks instead of small points. This makes it easier to see the color.</p><p>Note that there are plenty of orange stars and plenty of blue stars...but the nova has a unique color. To my eye it's a pale purple.</p><p>Why does the nova have a weird color?</p><p>4th image was taken from <a href="https://www.facebook.com/photo/?fbid=1771205990440705&set=pcb.10056320127790102" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">facebook.com/photo/?fbid=17712</span><span class="invisible">05990440705&set=pcb.10056320127790102</span></a> it's a spectrum of the nova. Most stars have a blackbody radiation distribution, but novae (that's the Latin form, plural) have strong emission lines at discrete colors. That can make a weird color compared to most stars.</p><p>Image taken with a camera on a fixed tripod.</p><p><a href="https://en.wikipedia.org/wiki/V462_Lupi" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">en.wikipedia.org/wiki/V462_Lup</span><span class="invisible">i</span></a></p><p><a href="https://universeodon.com/tags/Nova" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Nova</span></a> <a href="https://universeodon.com/tags/Photography" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Photography</span></a> <a href="https://universeodon.com/tags/Astrophotography" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Astrophotography</span></a> <a href="https://universeodon.com/tags/Science" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Science</span></a> <a href="https://universeodon.com/tags/CitizenScience" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>CitizenScience</span></a> <a href="https://universeodon.com/tags/Spectroscopy" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Spectroscopy</span></a> <a href="https://universeodon.com/tags/Spectrum" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Spectrum</span></a> <a href="https://universeodon.com/tags/Color" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Color</span></a> <a href="https://universeodon.com/tags/NewMexico" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>NewMexico</span></a></p>