THE RELATIVE MONTHLY MEAN SUNSPOT NUMBER ON FEBRUARY 2014 HAS MADE W feb.= 102.8, THAT GIVES FOR 61 MONTH (2013, JULY) DEVELOPMENT CURRENT 24 CYC- LES OF SOLAR ACTIVITY THE SMOOTHED MONTHLY MEAN SUNSPOT NUMBER W*june = 69.0 THE BEGINNING 24 CYCLES OF SOLAR ACTIVITY - I 2009 with W*=1.8 THE MOST PROBABLE TIME OF THE MAXIMUM OF THE CURRENT CYCLE- XI.2013 - I 2014 THE MOST PROBABLE HEIGHT OF THE MAXIMUM - Wmax = 68 - 75. ... 170.3 THE MONTHLY MEAN OF GEOMAGNETIC Ap-index ON 2014, FEBRUARY Ap feb.= ...

... Sun images . Magnetic storms online . Sun flares . Geomagnetic activity forecast . ... February : 2015 . ... No magnetic storm is expected . From 2 February 2015 to 28 February 2015 the following magnetic storms and disturbances are expected: . February 15, 2015 geomagnetic disturbances . ... February 02, 2015 geomagnetic storm of level G1 (minor) 2 February 2015 - 28 February 2015 . 01.02.2015 . ... Probability of a magnetic storm . ... Probability of a strong magnetic storm . ...

... Comet Ikeya-Zhang, designated C/2002 C1 (Ikeya-Zhang), is named after Kaoru Ikeya of Shizuoka prefecture, Japan, and Daqing Zhang of Henan province, China, who independently discovered it on the night of 1 February 2002. A preliminary orbit reported the following day indicated that it would come moderately close to both the Earth and the Sun and that it might become visible to the naked eye during late March and April 2002. ... Bailey, M.E., Clube, S.V.M. and Napier, W.M. The Origin of Comets . ...

... Current APO Weather . ... Search Site . ... Information for New Users . ... Technical Staff pages . Night Logs and Mailing Lists (maintained by APO) . ... Technical Documents and Database Search . ... Observer's Documentation and Procedures . ... Problem Reporting and APO Technical Documents Database Search . ... APO Drawing/Document Management Procedures . ... APO Technical Documents Database Search . Home Astrophysical Research Consortium . ... Mail Lists (maintained by APO) . ...

... ALMA . ... ARC Staff at ESO . ... The European ALMA Regional Centre (ARC) provides the interface between the ALMA project and the European science community. ... Below you can read the latest Announcements from the European ARC Network.. ... The call for 1-mm Very Long Baseline Interferometry (VLBI) proposals to use phased ALMA at Band 6 in Cycle 4, in collaboration with the Event Horizon Telescope Consortium (EHTC), will be released to coincide with the ALMA Cycle 4 Call for Proposals in March 2016...

... The new emission line galaxies are listed in Table 2 containing the following information: . column 1: The object's IAU-type name with the prefix HS. ... This was not corrected in the figure shown in Appendix A. HS1214+3801 : This is seemingly a supergiant H II -region at the very rim of the nearby edge-on disc galaxy (SA(s)cd) NGC 4244 (V hel = 224 kms -1 and B T =10.88). ... To check this option one needs a detailed map of the NGC 4244 velocity field including HS 1214+3801. ...

... Tirgo Page . ... Lunar occultations . ... Last modified on November 12, 1998 by A. Richichi . ... Many observatories around the world will follow these events, with the purpose of obtaining accurate measurements of the angular diameter of this red giant, from the recording of the lightcurve during the disappearance (or reappearance) behind the limb of the Moon. ... 6 November 1998: both disappearance and reappearance recorded under very good conditions at the TIRGO observatory by A. Richichi . ...

Proposal Identification No.: A2765 Arecibo Observatory Date Received: 2012-Sep-04 17:02:22 William E. Gordon Telescope Observing Time Request COVER SHEET Section I - General Information Submitted for Sep 1 2012. This proposal has been submitted before. ... A total of 90 hr observing time is requested. ... Remote Observing Request X Observer will travel to AO Remote Observing In Absentia (instructions to operator) Section I I - Time Request The following times are in LST. ...

Duty astronomers at the Compact Array are rostered from ATNF staff and students to provide support to observers at Narrabri for periods of one week at a time. The duty astronomers are required to assist observers prepare observing schedules, help set up the Compact Array at the start of an observing run, diagnose and attempt to solve problems that arise in the course of the observations and help observers with the initial analysis of their data. ... www.atnf.csiro.au/observers/tidbinbilla . ...

... APT Activities and Science Results 3. ... APT Secretary Philip Edwards (ISAS) reviewed the aims of the APT (http://www.vsop.isas.ac.jp/apt/DefinitionAndAims.html). ... The Australia Telescope Compact Array, and Ceduna, Hartebeesthoek, Kashima, Mopra, Parkes, and Shanghai telescopes of the Asia-Pacific Telescope participated in these observations. ... In the absence of Tetsuo Sasao, Philip Edwards briefly described results of the APT 22 GHz observations conducted from October 1st to 5th, 1997. ...

Astronomy Picture of the Day . An Unexpected Aurora over Norway . ... 4.05.2015 . ... Credit Copyright: Tommy Richardsen Explanation: Sometimes the sky lights up unexpectedly. A trip to northern Norway to photograph auroras was not going as well as hoped. It was now past midnight in Steinsvik , Troms , in northern Norway , and the date was 2014 February 8. ... When the sky suddenly exploded with spectacular aurora . ... Publications with keywords: aurora . ... Aurora over Clouds . ...

The Chi-Square Goodness of Fit Statistic . This statistic enables us to test whether observed frequencies are close to . those we would expect. ... Expected frequencies . ... For example, if we . have an honest die we would expect 1/6 of all cases to show any of . ... So, for example, if we roll a die 60 times we would expect : . ... If we actually roll a die 60 times we wouldn't expect each of the faces . ... times each face actually comes up is the observed frequency for that face. ...

... 2000 February 14 . An Unexpected Asteroid Valentine . Credit: NEAR Project , JHU APL , NASA . ... Friday, to the surprise of many, the NEAR mission on approach to asteroid 433 EROS photographed what appears to be a heart-shaped depression . After NEAR reaches the asteroid today, NASA plans a series of maneuvers to make the robot spacecraft the first ever to orbit an asteroid. ... About APOD | ... NASA Technical Rep.: ... A service of: LHEA at NASA / GSFC . ...

Blackholes2 Forum Message . ... Post . ... Shifts Are As Would Be Expected. ... Post Message | ... Red and blue shifts can be caused by velocities also. ... The expectd result would be a red or blue shift proportional to the aparent distance an object is from the observer. ... www.astronomy.net . About Astronomy Net | Advertise on Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

Geomagnetic disturbances can be monitored by ground-based magnetic observatories recording the three magnetic field components. The global Kp index is obtained as the mean value of the disturbance levels in the two horizontal field components, observed at 13 selected, subauroral stations . ... Geomagnetic activity is the occurrence of K variations. ... But K still remains a local index, describing disturbances in the vicinity of each observatory. ...

HST/GSFC Project Report ! ... Astrophysics Projects Division ! ... HST Senior Project Scientist ! Operations Project Scientist ! ... Science Operations Manager ! ... HST.Operations.April2013 STUC! Page 1 ! ... Enhanced blue wavelength science using Cosmic Origins Spectrograph (COS)! ... Condition of MLI observed during SM4 was as G! expected; degradation continuing · NOBLs installed on Bays 5, 7 and 8 during SM4 NOBLs tracking predictions well HST.Operations.April2013 STUC! ...

. Pulkovo Observatory of Russian Academy of Sciences is situated . near Saint-Petersburg. It was founded in 1839. 196140, Saint-Petersburg, Pulkovskoye chaussee 65/1 . English version . Russian version . This page has been accessed times since May 1, 1999.

. The XMM-Newton website has moved to the following location: . http://www.cosmos.esa.int/web/xmm-newton

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