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@gavo.fediscience.org.ap.brid.gyOct 4, 2026, 4:58 PM

New in the #VirtualObservatory: “Corrected proper motion for HIP stars” by Damljanovic G. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AN/347/70120
#Astrometry #VisibleAstronomy #ProperMotions

@hydezero-message.bsky.socialSep 29, 2026, 3:09 AM

A long microlensing event need not mean high mass. Read Huston et al.’s OGLE/MOA and Keck analysis: 3 targets are not black holes; OB150211 is a weak candidate. Parallax, blending and priors matter.
https://note.com/hydezero/n/n8999a3b8fadc?hl=en
#Astrometry #Microlensing

Concept illustration of stellar positions on a coordinate grid above an observatory. Blue points suggest a positional shift, not measured data or an actual telescope photograph.
@hydezero-message.bsky.socialSep 27, 2026, 3:10 AM

How does astrometry constrain lens mass? Read the OGLE/MOA and Keck analysis of four candidates. OB150211 remains a weak black-hole candidate; reference frames, parallax, blending and priors shape the inference.
https://note.com/hydezero/n/n8999a3b8fadc?hl=en
#Astrometry #Microlensing

Concept illustration of stellar positions on a coordinate grid above an observatory. Blue points suggest a positional shift, not measured data or an actual telescope photograph.
@gavo.fediscience.org.ap.brid.gySep 26, 2026, 4:43 PM

New in the #VirtualObservatory: “Reddening maps of the Magellanic Clouds” by Netzel H. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/713/A201
#Astrometry #InterstellarReddening #MagellanicClouds #Extinction

@gavo.fediscience.org.ap.brid.gySep 24, 2026, 4:56 PM

New in the #VirtualObservatory: “Orion B cores maps physical properties” by Mazurek H.J. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/713/A137
#MolecularPhysics #Astrometry #Photometry #UltravioletAstronomy

@gavo.fediscience.org.ap.brid.gySep 14, 2026, 6:52 AM

New in the #VirtualObservatory: “Multiwavelength, UV and z data of high-z galaxies” by Adams N.J. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/523/327
#Galaxies #Catalogs #Astrometry #Photometry

@gavo.fediscience.org.ap.brid.gySep 13, 2026, 6:54 AM

New in the #VirtualObservatory: “VSCL clusters and galaxies properties” by Hatamkhani N. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/522/2223
#InfraredAstronomy #GalaxyClusters #Galaxies #Astrometry