Comet C/1999 S4 (LINEAR) showed a very special behaviour between 28 June and 1 July 2000. Optical observations of the dust coma in two distinct continuum

1 Aug 2005 88P/1981 Q1 Howell, and in the chemically peculiar Oort Cloud comet C/1999 S4 (LINEAR). By comparing these measure- ments to previous

C 1999 S4 LINEAR, 1.7 × 1028, −1.6, 0.6% (17,18), 0.1% (18). Using NASA's Hubble Space Telescope, astronomers watching the comet LINEAR (C/1999 S4) in July 2000 were surprised to catch the icy comet in a brief, COMETS. C/1999 S4 Linear. C/1999 S4 Linear 29 images (sum) 20000714 01: 41/02:31 UTC Takahashi FS102 ST7. C/1999 S4 Linear (20000714) log scaled Comet LINEAR (C/1999 S4) was a comet that was observed to break apart as it approached the Sun. C/1999 S4 (LINEAR) C/1999 S4 (LINEAR) was a long-period comet discovered on September 27, 1999, by LINEAR. The comet made its closest approach to the The SWAN (Solar Wind ANisotropies) Lyman-alpha all-sky camera on the SOHO spacecraft observed the hydrogen coma of comet C/1999 S4 (LINEAR) from 8 Mar 2019 El C/1999 S4 LINEAR fue el cometa más brillante de 2000 y se hizo descubre cometas a patadas) en septiembre de 1999, al acercarse al The gas activity of comet C/1999 S4 (LINEAR) was monitored at radio wave- lengths during its disruption. A runaway fragmentation of the nucleus may have. Cometa C/1999 S4 (LINEAR).

C 1999 s4 linear

The gas activity of comet C/1999 S4 (LINEAR) was monitored at radio wavelengths during its disruption. A runaway fragmentation of the nucleus may have begun around 18 July 2000 and proceeded until 23 July. The mass in small icy debris (≤30-centimeter radius) was comparable to the mass in the large fragments seen in optical images. The mass budget after breakup suggests a small nucleus C/1999 S4 (LINEAR) Reported observations: 2000 July 24.70 UT: m1=6.3, DC=6, Tail=0.42 deg., … 6-cm R(30x) … Andrey Semenyuta (Pavlodar, Kazakhstan) C/1999 S4 (LINEAR) war ein Komet, von dem erwartet wurde, dass er im Juli 2000 mit bloßem Auge beobachtet werden könnte. Bei seiner Annäherung an die Sonne begann er jedoch, sich aufzulösen und zerfiel schließlich vollständig, so dass er letztendlich nur mit optischen Hilfsmitteln beobachtet werden konnte.

The two-dimensionalcoma morphology indicates a splitting of the nucleus which probably occurred shortlybefore the observations of 28 June 2000.

Download Citation | Comet C/1999 S4 (LINEAR) | IAUC 7418 available at Central Bureau for Astronomical Telegrams. | Find, read and cite all the research you need on ResearchGate

If you have an interest in meteors, fireballs or meteorites it is the website to visit! C/1999 S4 (LINEAR) was a long-period comet discovered on September 27, 1999, by LINEAR. The comet made its closest approach to the Earth on July 22, 2000, at a distance of 0.3724 AU (55,710,000 km; 34,620,000 mi).

The Composition of Cometary Volatiles - Institute for Astronomy www.ifa.hawaii.edu/UHNAI/ws/readings/morvan.pdf

I use an Audine camera equipped with a KAF-1602E CCD and a Lichtenknecker Flat-Field Camera telescope of 190 mm in diameter at F/D=4. A Rainbow Optics grating of 200 groove/mm is placed between the Den C/1999 S4 ass e laangperiodesche Koméit, deen de 27. September 1999 vum Projet LINEAR entdeckt gouf. De Koméit koum den 22. Juli 2000 op eng Distanz vun 0,3724 AE un eis Äerd erun.

2000/7/22 Negative sketch of Comet LINEAR C/1999 S4. 8"/f6 Dob, 25mm eyepiece.
Mejlander and mulgannon

On the origin of comet C/1999 S4 LINEAR. C. de la Fuente Marcos and R. de la Fuente Marcos. Univ ersidad Complut ense de Madrid, Ciudad Universitaria, 28040 Madrid, Spain. Receiv ed 20 August 2001 comet c/1999 s4 (linear) M. Kidger, Instituto de Astrofisica de Canarias, reports analysis of continued observations of C/1999 S4 at La Palma: "A 100-s exposure in R, taken by R. Corradi and N. O'Mahoney (Isaac Newton Group of Telescopes) on Aug. 1.9 UT with the Wide Field Camera on the 2.5-m Isaac Newton Telescope, shows no evidence of a nuclear condensation or subnuclei within the coma.

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C/1999 S4 (LINEAR) Classification: Hyperbolic Comet SPK-ID: 1000273 1999-09-27 last obs. used : 2000-07-24 planetary ephem. DE431 SB-pert. ephem.

The distribution of the dust The evolution of the morphology of C/1999 S4 (LINEAR) is examined from aseries of images taken from shortly before the disruption of the nucleus until10 days afterwards. This is combined with light curve data to provide a uniquedocumentation of the early evolution of the disruption event. 2001-05-18 · The gas activity of comet C/1999 S4 (LINEAR) was monitored at radio wavelengths during its disruption. A runaway fragmentation of the nucleus may have begun around 18 July 2000 and proceeded until 23 July.

av S Nilsson · 2005 — Samma material sprack även vid slagprovning enligt SS-EN 253 vid –20 °C på Density), LLDPE (Linear Low Density), MDPE (Medium Density) och HDPE (High En översiktlig utredning av RCP i fjärrvärmerör har gjorts av Bergström (1999) och S4-testet (Small-Scale Steady-State test) är ett laboratorietest för att mäta

The comet made its closest approach to the Earth on July 22, 2000, at a distance of 0.3724 AU (55,710,000 km; 34,620,000 mi). This is another comet found by the automatic minor planet search program LINEAR in New Mexico. It was found on CCD images obtained between 1999 September 27.40 and September 27.45 and was reported as an unusual moving object.

Receiv ed 20 August 2001 comet c/1999 s4 (linear) M. Kidger, Instituto de Astrofisica de Canarias, reports analysis of continued observations of C/1999 S4 at La Palma: "A 100-s exposure in R, taken by R. Corradi and N. O'Mahoney (Isaac Newton Group of Telescopes) on Aug. 1.9 UT with the Wide Field Camera on the 2.5-m Isaac Newton Telescope, shows no evidence of a nuclear condensation or subnuclei within the coma. Comet C/1999 S4 (LINEAR) Waagen, E. O; Abstract. Though necessarily uncertain, the following ephemeris extension to IAUC 7455 (from elements on MPC 40988) is given as a finding aid. 2000 TT R. A. (2000) Decl. Delta r Elong. Phase Aug. 14 12 35.59 - 7 21.5 1 Abstract The Chandra X-ray Observatory (CXO) observations of Comets McNaught–Hartley (MH) and LINEAR S4 (S4) have been processed in the same way to compare X-rays from those comets.