Skip to main content

COS

Title Posted By Updated/commented date Typesort icon
Special Notice #317: HST COS observing HS 0218+3229 2012 December 22 and SDSS J093249.57+472523.0 is probable next target weo 2 years 36 weeks ago Page
Special Notice #341: V485 Cen observations crucial tonight through Sunday night weo 2 years 24 weeks ago Page
Special Notice #359: OR And monitoring needed for HST/COS campaign weo 2 years 11 weeks ago Page
Special Notice #381: HST/COS observations of SDSS J100658.40+233724.4 weo 1 year 25 weeks ago Page
Special Notice #313: HST COS observing CW Mon tonight and V405 Peg is next target weo 2 years 38 weeks ago Page
Special Notice #338: HM Leo HST/COS observations tomorrow; V406 Vir is next target weo 2 years 27 weeks ago Page
Special Notice #356: V1108 Her obs urgent TONIGHT and new date for BD Pav weo 2 years 12 weeks ago Page
Special Notice #371: BB Ari observations particularly crucial now weo 1 year 47 weeks ago Page
Special Notice #308: Observations crucial starting tonight for FL Psc (ASAS J002511+1217.2) weo 2 years 41 weeks ago Page
Special Notice #330: Next HST/COS targets are IR Com and BB Dor weo 2 years 29 weeks ago Page
Special Notice #353: SDSS J153817.35+512338.0 obs crucial now and DT Oct is next weo 2 years 15 weeks ago Page
Alert Notice 417: Request for observations of GW Lib and V842 Cen in support of HST observations weo 2 years 3 weeks ago Page
Special Notice #304: HST COS observations of SDSS J001153.08-064739.1 scheduled weo 2 years 43 weeks ago Page
Special Notice #327: HST/COS observations scheduled for U Gem weo 2 years 31 weeks ago Page
Special Notice #350: 1RXS J105010.3-140431 and SDSS J153817.35+512338.0 next HST/COS targets weo 2 years 17 weeks ago Page
Special Notice #363: HS 2214+2845 (= V513 Peg) obs critical now weo 2 years 6 weeks ago Page
Special Notice #297: HST COS observations of SDSS J164248.52+134751.4 scheduled weo 2 years 46 weeks ago Page
Special Notice #322: CU Vel is next HST COS target weo 2 years 32 weeks ago Page
Special Notice #346: RZ Leo observations critical now for HST/COS and IU Leo next target weo 2 years 20 weeks ago Page
Special Notice #385: SBS 1108+574 HST/COS observations crucial NOW weo 1 year 15 weeks ago Page
Alert Notice 475: Monitoring of the dwarf nova U Geminorum in support of HST observations weo 2 years 35 weeks ago Page
Special Notice #342: PU CMa, then IY UMa and MR UMa next HST/COS targets weo 2 years 23 weeks ago Page
Special Notice #360: CC Scl observations critical this week weo 2 years 9 weeks ago Page
AAVSO 49 Bay State Rd. Cambridge, MA 02138 aavso@aavso.org 617-354-0484