Variability of 3 protoplanetary nebulae
收藏B2FIND2026-03-19 收录
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https://b2find.eudat.eu/dataset/10f36dd1-5918-5584-9296-d9025dc929d3
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We present new photometric data and analyze long-term UBV observations of three candidates for protoplanetary nebulae - F supergiants with infrared excesses at high Galactic...
