... Help the observer to classify the variables as classical Cepheids (C1), type II Cepheids (C2) and RR Lyrae stars (R). ... Notes: Classical Cepheid stars are a type of pulsating variable stars, which show linear relationship between period of pulsation and absolute luminosity in a log-log plot. ... RR Lyrae stars are another type of pulsating variable stars which show very short period (less than 1 day) of pulsation and for all RR Lyrae stars, the absolute luminosity is nearly constant. ...

... Dnepr launch record 17 August 2011. ... Baikonur Cosmodrome Yasny launch base Downloads . ... Yasny launch base is located in Orenburg Region, Russia. ... Admin & Hotel Complex including hotels, dining facilities and office premises; . Assembly, Integration and Test Building (AITB) incorporating clean room facilities and fueling station; . ... Yasny launch base AITB is divided into four main areas: Clean room 1 (CR1), Clean room 2 (CR2), Fueling Station and Offloading & Storage Area. ...

Geophysical Research Abstracts Volumi 3, 2001 . ... The observable lunar region was a seismic active region (30W, 5S). ... arcminutes long trip on the lunar surface in direction to Mare Serentatis. ... 23 Moon's phase angles and 1954 lunar regions. ... basin are compared to craters located in highland and mare regions. ... morphology of craters in the mare region is found to differ drastically from those in . ... and craters with faults in the mare region are due to lava flooding of ancient . ...

pic] DIGITAL WDC OBSERVATORY EXCHANGE FORMAT [pic] HOURLY VALUES COLUMNS FMT DESCRIPTION 1-3 A3 OBSERVATORY 3-LETTER CODE, left adjused 4-5 I2 YEAR (last 2 digits, 82 = 1982) 6-7 I2 MONTH (01-12) 8 A1 ELEMENT(D,H,X,Y,Z,or F) 9-10 I2 DAY OF MONTH (01-31) 11-12 A2 Blanks 13-14 A2 Arbitrary 15 A1 INTERNATIONAL QUIET or DISTURBED DAYS, Q=1,D=2 16 I1 Blank for data since 1900,8 for data before 17-20 I4 Tabular base, in degrees for D and I, hundreds of nanoTeslas (gammas) for the intensity elements. ...

... Participants . ... Local Information . ... Registration and accomodation of participants . ... Session "Methods and instruments to measure/monitor major site properties" . ... Session "Methods and instruments, general issues" . ... Local excursions . ... Session "Results of ELT site testing programs - I" . ... Session "Results of recent and ongoing site programs" . ... Session "The site testing programs in Antarctica and in Arctic" . ... Departure of participants, local excursions . ...

... the total number of numbered minor planets is 350441 ; . the total number of named minor planets is 17621 ; . the unnamed minor planet with the least number: (3708) 1974 FV1 ; . the named minor planet with the greatest number: (340980) Bad Vilbel ; . the total number of minor planet names containing symbols with diacritical characters is 839 ; . ... the first minor planet named using a symbol with diacritical character is (61) Dana?. ... Symbol . ... Minor planet names ...

Russian Space Science Internet (RSSI) is a successful result of RSSI Project. ... space oriented organizations; . ... RSSI offers for its members : . ... videoconferences via MBONE Internet protocol (there are 2 tunnels available now through the general IP network: one to NASA Internet, and another to Moscow State University); . ... It is designed so that all organizations connected to the RSSI gain access to the resources of Russian computer networks as well as world wide Internet. ... nic@rssi.ru ...

. Nonstationary stars are characterized by the disturbanches of the outer layer balance. To the nonstationary stars belong the physical variable stars and the stars with the shell. All the stars in their development pass the period of nonstationarity. Back .

... Next Routine] [List of Routines] NAME: ADD_HEADER PURPOSE: addition information from FITS-headers MPFS-frames DESCRIPTION: The function computes the total exposure, mean value zenit distance and modified FITS header CALLING SEQUENCE: Result =ADD_HEADER( headers ) CATEGORY: reduction MPFS-data INPUTS: Headers = String array FITS-headers from the MPFS data OUTPUTS: Header = String array containing the header from the FITS file. ... OPTIONAL INPUT KEYWORD PARAMETERS: BEFORE = Keyword string name. ...

... PUL VLBI Analysis Center . ... Pulkovo EOP and Reference Systems Analysis Center (PERSAC) is located at the Pulkovo Observatory . ... Processing of VLBI , GPS, and optical observations aimed at analysis of the Earth rotation, station displacement, and celestial reference system. ... Celestial Pole Offset (CPO) and Free Core Nutation (FCN) . Four daily updated CPO and FCN series (models) are provided. ... File fcn1.dat contains the ZM1 FCN model with variable amplitude and phase. ...

A computer controlled low light photometer for nightglow observations. Hardware units of portable photometer for low light measurements, especially night glow emission is described. ... Interface card contain three channels of 24 bit counter, 4 channels of 12 bit ADC and the buffer bus for the controlled motors of the altazimuthal fork mounting and filters wheel, the position encoders. ... Where N( ) is output signal photometer generated input light flux F( l ) . ... PMT # . 599 . ...

... Bad Astronomy . ... On Thursday, February 15th 2001 (and replayed on March 19), the Fox TV network aired a program called ``Conspiracy Theory: Did We Land on the Moon?'', hosted by X-Files actor Mitch Pileggi. ... Dust around the lander . ... However, it appeals to our common sense: when the sky is black here on Earth, we see stars. ... Bad: The program claims that when the top half of the lander took off from the Moon to bring the astronauts back into orbit, there was no flame from the rocket. ...