The Etched Hourglass Nebula MyCn18: I. Hubble Space Telescope
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planetary nebulae stars MyCn18 AGB post-AGB mass-l↗
Engineering topics
Hoessel, J.
Publications and source records attributed to Hoessel, J..
A Variable Asymmetry in the Circumstellar Disk of HH 30(sup 1)
We report Hubble Space Telescope observations of variability within the reflection nebulosity of HH 30, a compact bipolar nebula which is a nearly edge-on accretion disk system.
accretion disks circumstellar matter pre-main sequ↗
Variable Stars in the DDO 187 Dwarf Galaxy
Twelve pulsating variable stars have been discovered in the dwarf irregular galaxy DDO 187.
Cephads↗
Asteroid Trails in Hubble Space Telescope WFPC2 Images: First Results
Careful examination of 28,460 selected Wide Field and Planetary Camera 2 (WFPC2) long exposures from 1994, 1995 and early 1996 has revealed trails of 96 distinct moving objects.
asteroids Hubble Space Telescope↗
The Hubble Space Telescope Extragalactic Distance Scale Key Project. X. The Cepheid Distance to NGC 7331
The distance to NGC 7331 has been derived from Cepheid variables observed with HST/WFPC2, as part of the Extragalactic Distance Scale Key Project. Multi-epoch exposures in F555W(~V) and F814W (~1), with photometry derived independently from DoPHOT and DAOPHOT/ALLFRAME programs, which were used to detect a total of 14 reliable Cepheids, with periods between 11 and 42 days.
Cepheids galaxies distances redshifts NGC 7331 ear↗
The On-Orbit Performance of WFPC2
This paper provides an overview of the characteristics of the second Wide Field and Planetary Camera and some authors' perspectives of its first six months of operation on orbit.
Hubble↗
The Extragalactic Distance Scale Key Project I: The Discovery of Cepheids and a New Distance to M81 Using The Hubble Space Telescope
This paper presents initial observations, including the discovery of 30 Cepheids in the nearby galaxy M81, made using the Wide Field Camera (WFC).
Hubble Space Telescope Extragalactic Distance Scal↗
The Hubble Space Telescope Extragalactic Distance Scale Key Project KK: Photometry of WFC Images of M81
This paper describes the Extragalactic Distance Scale Key Project for Hubble Space Telescope which aims to employ the Cepheid period-luminosity relation to measure galaxy distances out as far as the Virgo cluster.
extragalactic distance scale Hubble Space Telescop↗