Peremennye Zvezdy", . ... Min . ... Data . ... MACHO 303.45079.40 . ... min . Comm. 1 . ... MACHO 302.45091.74 . ... 15.65 . ... MACHO 302.45093.308 . ... MACHO 301.45275.105 . ... MACHO 301.45269.26 . ... MACHO 301.45274.8 . ... MinII = 15.45. ... Acknowledgements: This paper utilizes public domain data obtained by the MACHO Project, jointly funded by the US Department of Energy through the University of California, Lawrence Livermore National Laboratory under contract No. ...

SAS home . ... EPIC background spectra are normally extracted from regions of the observation field-of-view, once "contamination" due to individual discrete celestial sources has been removed. ... In order to cope with this situation, blank sky event lists can be downloaded from the XMM-Newton Science Operations Center web site. ... It is in principle possible as well to extract background spectra from blank field event lists, if the spectrum accumulation regions are defined in sky coordinates. ...

... HST . ... Data . ... HST Overview . Overview . ... Cycle 24 Announcement . ... Retrieving HST Data . ... Instruments . ... Grism Spectroscopy . ... UVIS Flats . ... Instrument Handbook . Data Handbook . ... The Wide Field Camera 3 (WFC3) is a fourth-generation UVIS/IR imager aboard the Hubble Space Telescope (HST). WFC3 was installed in May 2009 during HST servicing mission 4, and replaces the Wide Field Planetary Camera 2 (WFPC2). ... ISR 2016-09: WFC3 Cycle 22 Proposal 14007: UVIS Gain . ...

... field with sources removed (jpeg) . ... Map positions raw data . Plot: sampled map positions for each field (.ps) ( .pdf ). Plot: where all 28 fields fit into the final combined map (.ps) ( .pdf ). ... The individual maps by field . ... Field_A . ... The plots shows the sampled map positions for each field take for a2704 (.ps) ( .pdf ). ... Repeat steps 1 5 with the corrected fields, using the dec overlap of the pairwise maps. 21feb11: changed so that 1-6 only corrects 20% of the difference. ...

... The are two main sources of magnetospheric electric fields. The other is the solar wind related, dawn-to-dusk directed ("convection") field, and the other is the co-rotation electric field related to the rotation of the Earth along its spin axis. The electric fields have a strong effect on the drift paths of the magnetospheric plasma . ... The energetic particles, following the magnetic drifts more readily, are also affected by the convection field. ... Space Physics Text Book of Oulu ...

... The storm began quite unexpectedly. The strongest geomagnetic storm for the last seven months began on Earth almost precisely at the same time as the solar eclipse reached its maximal stage, the culmination of which occurred at GMT 02:35 (06:35 Moscow time). ... Oscillations of such amplitude in the magnetic field have not been observed since October, 11th of last year, which is more than seven months ago. ... We can only add that the magnetic storm lasted approximately 9 hours. ...

WCSLIB љ 5.15 . ... DataљStructures . ... fitskey Struct Reference . ... fitshdr() returns an array of fitskey structs, each of which contains the result of parsing one FITS header keyrecord. ... Returned ) Keyvalue data type: . ... Returned ) Logical ( fitskey::type == 1) and 32-bit signed integer ( fitskey::type == 2) data types in the fitskey::keyvalue union. int64 fitskey::k . Returned ) 64-bit signed integer ( fitskey::type == 3) data type in the fitskey::keyvalue union. int fitskey::l . ...

... Tonight's Sky . ... Observing . ... Astronomy for Kids . ... Observing springtime deep-sky objects with a large telescope . ... Do the magnetic fields of the planets affect spacecraft during flybys? ... Yes, a spacecraft that has a net charge will feel an effect due to the Lorentz force while moving through a planet s magnetic field. ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email...