Galaxy Zoo Talk

Blue Orb

  • nerdfailure by nerdfailure

    Is that a star on the lower left?

    Posted

  • JeanTate by JeanTate

    Yes

    Posted

  • kickastrophysicist by kickastrophysicist

    Are you certain? Now i have to look...

    Posted

  • JeanTate by JeanTate in response to kickastrophysicist's comment.

    Not 100% certain, no.

    However, under Cross-identifications in the Explore view of this object, there is "USNO" in the catalog field, and the proper motion is given as ~8.9 mas/year. If that cross-ID is correct, and if the USNO proper motion value is robust, then it's surely (99+%) a star ...

    Posted

  • ElisabethB by ElisabethB moderator

    I would just go for star ! (experience from looking at 100K+ images). But as Jean says, we can't be 100% sure ! 😄

    Posted

  • lovermann by lovermann

    Its a galaxy USNOA2 0900-19031523

    The blue-white object in the left lower part of photo certainly a STAR and is classified as: USNOA2 0900-19031425

    Posted