Talk:ADS 7251

Proposed merger

It has been proposed (not by me) that this article be merged to List of stars in Ursa Major. Discuss. Lithopsian (talk) 19:58, 24 April 2020 (UTC)

This is a near-naked-eye double star containing two flare stars. There are over 200 journal papers referencing them, admittedly usually in big lists. But still, surely there is something worth writing about them? Lithopsian (talk) 19:59, 24 April 2020 (UTC)

Given that this system has been found to have a planet since the merger was proposed, it should probably be kept as a separate article. SevenSpheresCelestia (talk) 00:17, 1 October 2020 (UTC)

I've removed the merge tag. There doesn't seem to be much support for it, although notability is pretty borderline even with the planet discovery paper. Lithopsian (talk) 14:16, 1 October 2020 (UTC)

Spectral Type

The intro indicates these are two almost identical red dwarfs, but the table lists star B as K7V [an orange star, albeit, almost red]. Tesseract501 (talk) 23:34, 30 June 2023 (UTC)

K7 is still a red dwarf (or a red giant with the appropriate luminosity class), despite the over-use of the term "orange dwarf" in Wikipedia. Given that K8 and K9 are almost never seen, K7 is almost identical to M0. Particularly note the temperatures, albeit from just one of many sources, where component B is actually cooler. There are other publications of spectral classes, and both component A has been listed as K7 and component B as M0, but the values given in the starbox are those used as spectral standards. However, Simbad prefers a different source and gives K7 for the primary and M0 for the secondary. The article could be expanded to present some of these ambiguities. Lithopsian (talk) 12:55, 2 July 2023 (UTC)