Coordinate Systems used for spacecraft trajectory description: . ... The HGI coordinates are Sun centered and inertially fixed with respect to an X-axis directed along the intersection line of the ecliptic and solar equatorial planes. ... Cometocentric (solar) Ecliptic Coordinate System (CSE) . ... CSE coordinate system for the SC POSITION: axis origin at comet center, X-axis to the SUN, Z-axis to ecliptic north pole, (X,Y)-plane is parallel to the ecliptic plane. ...

... MASTER Net is 56 square degrees per 1 exposition . ... 06 Dec 2015: GRB 151205B: MASTER-NET early optical observations GCN18665 . ... 18 Nov 2015: GRB 151118A: MASTER-NET optical observations GCN18613 . ... 12 Nov 2015: GRB 151112A: MASTER-NET optical limit GCN18591 . ... 07 Nov 2015: GRB 151107A: MASTER-NET optical observations GCN18565 . ... 31 Oct 2015: Five OTs detected by Global Robotic MASTER Net ATel8232 . ... 02 Oct 2015: GRB 151001B: MASTER-NET early optical observations GCN18380 . ...

... The unlocked gate at the entrance to the observatoryтАЩs gravel driveway should remain closed to prevent the public from driving back to the observatory. ... This means that if there are still members of the public present at the observatory who do not wish to leave by 11:30 PM they will be locked in the park until a keyholder leaves and secures the gate(s) behind him/her. ... Roll the roof back using the hand crank near the computer room. ... Amateur Astronomers Association of Princeton, Inc., ...

SAI VO . ... SAI CAS . ... main [?] . ... Cross-match your data with our catalogue! User table: Must be valid VOTable or CSV file . Format of the input file: . VOTable - XML-based format . CSV (Comma-Separated Values) - simple text format . CSV format requires names of columns with coordinates. Name of RA column: Dec: . Hint: CSV is a simple text format where the data columns are separated by the comma and the first line contains the names of the corresponding columns. ...

... ARTICLE: The Adventurous Search For The Astronomical Unit . ... Kepler himself had suggested to use the rare occasions of Venus transiting (crossing) the solar disk to measure our distance to the planet. ... Due to the orbital inclination of Venus against the ecliptic of 3.5°, a Venus transit is so rare that it happens only at intervals of 121.5 years, 8 years, 105.5 years, 8 years and so on. ... Crabtree witnessing the transit of Venus 1639 . ... Transits of Venus - The Quest for the Solar Parallax...

Super Rocket Targets . NPO MOLNIYA has been designing rockets-targets for over 30 years using the great experience in crea-ting anti-aircraft guided rockets (AGR) for C-25M. On the basis of B-300 anti-aircraft rockets which expired their service life, there were designed, tested and put into the serial production the following types of the rocket - ... The analogue of this system successfully passed the state tests with the ZVEZDA-4 rocket-target. ...

... It was with this spirit that Norman Oberle suggested that area amateurs should have the benefit of a large aperture (25 inches or larger) telescope with sufficient focal length for excellent visual work. ... Norm Oberle and Jim Thomas spent 2,000 hours grinding and polishing to work the mirror into an oblate spheroid. ... Norm worked with Jim Thomas in a basement workshop. ... The Richland club is situated in the Hidden Hollow camp ground, and has long held meetings in the clubhouse on the grounds. ...

The Integrated Information Display System for the Soyuz-TMA and the Integrated Console of Manual Control Loop for the Russian Segment of the International Space Station Yurii Tiapchenko, deputy Chief Designer and head of the Division of Onboard Information Display Systems (1993-2002) at the Specialized Experimental Design Bureau of Spacecraft Technology and Chief Designer at the NTC "Alpha-M". ... The tasks of the spaceship IDS are provided by the Simvol and KL-110 display systems. ...

Электронная библиотека астронома-любителя. ... Ru.Space.News: . Апрель 1998 . ... FOR RELEASE: 9:00 a.m. (EDT) April 9, 1998 CONTACT: Ray Villard Space Telescope Science Institute, Baltimore, MD (Phone: 410-338-4514) PRESS RELEASE NO.: ... Дата: 13 апреля 1998 (1998-04-13) От: Alexander Bondugin Тема: Full Data Sets From Galileo's First Six Orbits Now Available Привет всем! ... Дата: 13 апреля 1998 (1998-04-13) От: Alexander Bondugin Тема: Sky Telescope News Bulletin - April 10, 1998 Привет всем! ...

Crater Gassendi . ... I made this drawing was made on the 26th of november 2001. If you compare this one with the previous drawing of Gassendi (below) the differences are clear. ... This drawing was made on the 28th of september 2001. After nearly a full month without observations I had a one hour gap between the thicker clouds. ... This drawing was made on the 29th of august 2001. ... This drawing was made on the 27th of august 2001. ... This drawing was made on the 25th of august 2001. ...

Journal of Atmospheric and Solar-Terrestrial Physics Manuscript Draft Manuscript Number: ATP1021 Title: comment on the paper by Dalin , Pertsev and Romejko Significance of lunar impact on noctilucent clouds ( revised version) Article Type: Research Paper Section/Category: Keywords: Noctilucent clouds moon influence mesosphere Manuscript Region of Origin: Abstract: a critical review of the paper by Dalin , ... Reference: Dalin, P.A., N.N. Pertsev, V.A. Romejko. ...