#calsky

[urrepules]

Nem túl jó a láthatóság, a Dragon 2 holnap dél körül dokkol, aki meg akarja tekinteni az ISS-t és az űrhajót, annak van egy hajnali fél 5-ös és egy reggel negyed hetes időpontja.

[astroblogs]

Legault fotografeert ISS als deze een protuberans van de zon passeert

Het ISS passeert de zonneschijf en een protuberans (credit: Thierry Leugault).

De wereldberoemde Franse astrofotograaf Thierry Legault is er weer in geslaagd een unieke foto te maken – de Astroblogs staat vol met eerdere prestaties van hem. Legault heeft al vaker het internationale ruimtestation ISS gefotografeerd terwijl dat de zon aan de hemel passeert, maar dit keer heeft hij er weer een nieuw tintje aan gegeven. Hij heeft namelijk het ISS gefotografeerd, terwijl het een protuberans aan de rand passeert, een grote uitbarsting op de zon van gloeiendhete materie. Legault maakt gebruik van het programma Calsky, dat exact voorspelt wanneer op een bepaalde locatie zo’n transitie plaatsvindt. Op 21 augustus j.l. zou dat weer bij hem in de buurt (Parijs) plaatsvinden. Hij moest ruim één kilometer van de centrale lijn zitten, want de toen zichtbare protuberans zat iets ten noorden van de evenaar van de zon. De passage van het ISS voor de zonneschijf duurt slechts 0,8 seconden (één niesbui en je hebt ‘m gemist) en met een hoge snelheidscamera1 van 40 opnames per seconde wist hij het ISS tijdens de transitie 32 keer vast te leggen, waaronder een paar in de protuberans, hieronder zichtbaar in een uitvergroting.

Uitvergroting van het ISS, dat de protuberans passeert (credit: Thierry Leugault).

Er is nog een andere protuberans te zien aan de rand van de zon, ten noorden van de protuberans waar het ISS ‘doorheen vloog’. Ook is er op de zonneschijf zelf nog een protuberans te zien. Nee het is niet die grote witte vlek, waar het ISS onderdoor vliegt, da’s een ‘gewone’ zonnevlek. Het is dat langwerpige donkere lint, rechts van de witte vlek. Als protuberansen op de zonneschijf plaatsvinden steken ze altijd zo donker af en dan worden ze filamenten genoemd. Hieronder een korte video, waarin je de transitie van het ISS over de zonneschijf en de protuberans ziet.

Bron: Universe Today.

Noot:

een Takahashi FSQ-106, Coronado SM90 DS, Basler acA1920-155um. [↩]

Astroblogs: http://www.astroblogs.nl/2015/09/02/legault-fotografeert-iss-als-deze-een-protuberans-van-de-zon-passeert/

[lcoronelp]

[CalSky] Meteor Streams Today (lcoronelp) (March 12, 2014 at 11:53PM)

Meteors > Todays Meteors

CalSky.com > Selected Menu > Meteors > Todays Meteors E-mail & Alert Manager > Change subscription

This e-mail is automatically generated and delivered to you on your request by CalSky.com. To change your settings please follow the links in the top right-hand corner.

Start of used for calculation:Date:13. March 2014Time:01:23:09

Duration for calculation:1 Day

time step for calculation:1 Day

Today's Meteors

Naked-eye limiting magnitude for calculation of the actual hour rate: 6 mag, Suburban sky

Thursday 13 March 2014 Time (24-hour clock)Object (Link)Event  Observer SiteBellatrix, Venezuela   WGS84: Lon:  -66d53m22.61s  Lat: +10d28m13.27s  Alt: 946m All times in UTC-5 5h MeteorGamma-Normids (GNO)   Best seen from 23.7h - 4.8h (htop=28° at S at 4.8h)  ZHR=5.4 Local hour rate=1  Velocity=61.0km/s (rapid) Radiant: RA=16.7h/251°  Dec=-51.3° (J2000) (in constellation Ara/Ara) 16h Meteor MaximumGamma-Normids (GNO) ZHR=5.8  Velocity=61.0km/s (rapid) Radiant:  RA=16.8h/252°  Dec=-51.3° (J2000) (in constellation Ara/Ara) Solar longitude=353.0° (J2000) Stream active from 25. February to 22. March

Export to Outlook/iCal   Print

This e-mail has been automatically generated by the Alert Manager of CalSky.com. This e-mail is sent to you according to your express request. In case you would like to discontinue this subscription, please click on the link 'Change Subscription' on the top right of this page. You receive alert emails only if the calculation produced some output. Generated images are stored for 48 hours. This material is ©1998-2014 by Arnold Barmettler (Imprint / Privacy policy / Disclaimers). Hard copies may be made for personal use only. No electronic copy may be located elsewhere for public access. All pages are dynamically generated. The usage of web copy tools is strictly prohibited. Commercial usage of the data only with written approval by the author. If you have any questions or comments, or plan to use results from CalSky in your publications or products, please contact us by e-mail. Credits. Dieser Service wird in der Schweiz entwickelt und betrieben; Sie können uns auch gerne auf Deutsch schreiben.

Unsubscribe/modify e-mail alerts

[lcoronelp]

[CalSky] Ecl: Lunar Occultations (lcoronelp) (March 11, 2014 at 11:38PM)

The Moon > Star/Planet Occultations

CalSky.com > Selected Menu > The Moon > Star/Planet Occultations E-mail & Alert Manager > Change subscription

This e-mail is automatically generated and delivered to you on your request by CalSky.com. To change your settings please follow the links in the top right-hand corner.

Start of used for calculation:Date:12. March  2014 Time:01:08:14

Duration for calculation:1 Day

Occultations of Stars and Planets

Thursday 13 March 2014 Time (24-hour clock)Object (Link)Event 1h08.2m MoonImmersion of 60 Cnc, SAO 98235 (Close double star), 5.4mag, Position angle=156.6°, Azimuth az=277.5°, Altitude h=29.5°, RA= 8h56.7m  Dec=+11°34.0', Moon phase=88.9%, Sun elevation hsun=-66.2° (dark limb)

Export to Outlook/iCal   Print

This e-mail has been automatically generated by the Alert Manager of CalSky.com. This e-mail is sent to you according to your express request. In case you would like to discontinue this subscription, please click on the link 'Change Subscription' on the top right of this page. You receive alert emails only if the calculation produced some output. Generated images are stored for 48 hours. This material is ©1998-2014 by Arnold Barmettler (Imprint / Privacy policy / Disclaimers). Hard copies may be made for personal use only. No electronic copy may be located elsewhere for public access. All pages are dynamically generated. The usage of web copy tools is strictly prohibited. Commercial usage of the data only with written approval by the author. If you have any questions or comments, or plan to use results from CalSky in your publications or products, please contact us by e-mail. Credits. Dieser Service wird in der Schweiz entwickelt und betrieben; Sie können uns auch gerne auf Deutsch schreiben.

Unsubscribe/modify e-mail alerts

[lcoronelp]

[CalSky] Sat: Sun or Moon Crossing Satellites for today (lcoronelp) (March 08, 2014 at 11:39PM)

Artificial Satellites > Sun/Moon Crossers, Occultations > Local visible Transits: Exact times and places for observing satellites transiting the disk of the Moon or the Sun, or close fly-bys at brighter stars and planets

CalSky.com > Selected Menu > Artificial Satellites > Sun/Moon Crossers, Occultations > Local visible Transits (Exact times and places for observing satellites transiting the disk of the Moon or the Sun, or close fly-bys at brighter stars and planets) E-mail & Alert Manager > Change subscription

This e-mail is automatically generated and delivered to you on your request by CalSky.com. To change your settings please follow the links in the top right-hand corner.

Start of used for calculation:Date:9. March 2014Time:01:08:49

Duration for calculation:1 Day

Lunar/Solar Disk Crossings and Occultations by Larger Satellites

Sunday 9 March 2014 Time (24-hour clock)Object (Link)Event 23h22m24.78s Intelsat 501 Rocket (12497 1981-050-B)Crosses the disk of Moon. Separation=0.076°  Position Angle=12.7°, Position angle vertex=286.7°.  Transit duration=1.74s Angular diameter=2.3"  cylindrical, 8.6m x 3.0m Satellite at Azimuth=285.8° WNW  Altitude= 22.5°  Distance=810.1 km (in shadow) In a clock-face concept, the satellite will seem to move toward 11:27 Angular Velocity=16.1'/s Centerline, closest point: Longitude= 66°53'05"W  Latitude=+10°28'55" (WGS84)  Distance=1.38 km  Azimuth= 22.4° NNE  Path direction=112.4° ESE  ground speed=9.750 km/s  width=7.9 km  max. duration=1.8 s Sun elevation=-83°  Elongation from Sun=108° Time uncertainty of about 2.2 seconds

Export to Outlook/iCal   Print

This e-mail has been automatically generated by the Alert Manager of CalSky.com. This e-mail is sent to you according to your express request. In case you would like to discontinue this subscription, please click on the link 'Change Subscription' on the top right of this page. You receive alert emails only if the calculation produced some output. Generated images are stored for 48 hours. This material is ©1998-2014 by Arnold Barmettler (Imprint / Privacy policy / Disclaimers). Hard copies may be made for personal use only. No electronic copy may be located elsewhere for public access. All pages are dynamically generated. The usage of web copy tools is strictly prohibited. Commercial usage of the data only with written approval by the author. If you have any questions or comments, or plan to use results from CalSky in your publications or products, please contact us by e-mail. Credits. Dieser Service wird in der Schweiz entwickelt und betrieben; Sie können uns auch gerne auf Deutsch schreiben.

Unsubscribe/modify e-mail alerts

[lcoronelp]

[CalSky] Sat: ISS Flybys for today (lcoronelp) (March 08, 2014 at 11:38PM)

Artificial Satellites > Internat. Space Station ISS

CalSky.com > Selected Menu > Artificial Satellites > Internat. Space Station ISS E-mail & Alert Manager > Change subscription

This e-mail is automatically generated and delivered to you on your request by CalSky.com. To change your settings please follow the links in the top right-hand corner.

Start of used for calculation:Date:9. March 2014Time:01:08:39

Duration for calculation:1 Day

Visibility of International Space Station ISS

Name: ISS Launched: 20 Nov 1998 Dimensions: 109 m x 73 m x 27.5 m Brightness: -2.0 mag (at 1000 km, 50% illuminated) -4.7 mag (at perigee, full illumination) USSPACECOM Nr: 25544 Internat. Designator: 1998-067A Orbit: 411.3 x 415.9 km, 92.8min Inclination: 51.6° Age Elements:  0.6 days

Satellite Menu

· Info ·  Orbit History/Zoom · Sighting Opportunities · Data & view of the Earth · Finder Chart · Ground Track Map

Sunday 9 March 2014 Time (24-hour clock)Object (Link)Event 4h07m54s ISS →Ground track →Star chart Appears       4h07m21s  -2.6mag  az:150.8° SSE  h:34.7° Culmination   4h07m54s  -2.5mag  az:125.2° SE   h:37.8°  distance: 644.8km  height above Earth: 415.0km  elevation of Sun: -23° Disappears    4h13m11s   1.1mag  az: 47.4° NE   horizon

Export to Outlook/iCal   Print

This e-mail has been automatically generated by the Alert Manager of CalSky.com. This e-mail is sent to you according to your express request. In case you would like to discontinue this subscription, please click on the link 'Change Subscription' on the top right of this page. You receive alert emails only if the calculation produced some output. Generated images are stored for 48 hours. This material is ©1998-2014 by Arnold Barmettler (Imprint / Privacy policy / Disclaimers). Hard copies may be made for personal use only. No electronic copy may be located elsewhere for public access. All pages are dynamically generated. The usage of web copy tools is strictly prohibited. Commercial usage of the data only with written approval by the author. If you have any questions or comments, or plan to use results from CalSky in your publications or products, please contact us by e-mail. Credits. Dieser Service wird in der Schweiz entwickelt und betrieben; Sie können uns auch gerne auf Deutsch schreiben.

Unsubscribe/modify e-mail alerts

[lcoronelp]

[CalSky] Sat: Sun or Moon Crossing Satellites for today (lcoronelp) (March 07, 2014 at 11:38PM)

Artificial Satellites > Sun/Moon Crossers, Occultations > Local visible Transits: Exact times and places for observing satellites transiting the disk of the Moon or the Sun, or close fly-bys at brighter stars and planets

CalSky.com > Selected Menu > Artificial Satellites > Sun/Moon Crossers, Occultations > Local visible Transits (Exact times and places for observing satellites transiting the disk of the Moon or the Sun, or close fly-bys at brighter stars and planets) E-mail & Alert Manager > Change subscription

This e-mail is automatically generated and delivered to you on your request by CalSky.com. To change your settings please follow the links in the top right-hand corner.

Start of used for calculation:Date:8. March 2014Time:01:07:46

Duration for calculation:1 Day

Lunar/Solar Disk Crossings and Occultations by Larger Satellites

Saturday 8 March 2014 Time (24-hour clock)Object (Link)Event 16h19m25.93s Intelsat 501 Rocket (12497 1981-050-B)Crosses the disk of Sun. Separation=0.074°  Position Angle=332.2°, Position angle vertex=254.9°.  Transit duration=32.99s Angular diameter=0.2"  cylindrical, 8.6m x 3.0m Satellite at Azimuth=261.5° W    Altitude= 18.4°  Distance=10131.1 km In a clock-face concept, the satellite will seem to move toward  0:30 Angular Velocity=0.9'/s Centerline, closest point →Map: Longitude= 66°55'05"W  Latitude=+10°35'14" (WGS84)  Distance=13.35 km  Azimuth=346.5° NNW  Path direction= 76.5° ENE  ground speed=10.429 km/s  width=99.0 km  max. duration=34.3 s Time uncertainty of about 2.7 seconds

Export to Outlook/iCal   Print

This e-mail has been automatically generated by the Alert Manager of CalSky.com. This e-mail is sent to you according to your express request. In case you would like to discontinue this subscription, please click on the link 'Change Subscription' on the top right of this page. You receive alert emails only if the calculation produced some output. Generated images are stored for 48 hours. This material is ©1998-2014 by Arnold Barmettler (Imprint / Privacy policy / Disclaimers). Hard copies may be made for personal use only. No electronic copy may be located elsewhere for public access. All pages are dynamically generated. The usage of web copy tools is strictly prohibited. Commercial usage of the data only with written approval by the author. If you have any questions or comments, or plan to use results from CalSky in your publications or products, please contact us by e-mail. Credits. Dieser Service wird in der Schweiz entwickelt und betrieben; Sie können uns auch gerne auf Deutsch schreiben.

Unsubscribe/modify e-mail alerts

[lcoronelp]

[CalSky] Sat: ISS Flybys for today (lcoronelp) (March 07, 2014 at 11:37PM)

Artificial Satellites > Internat. Space Station ISS

CalSky.com > Selected Menu > Artificial Satellites > Internat. Space Station ISS E-mail & Alert Manager > Change subscription

This e-mail is automatically generated and delivered to you on your request by CalSky.com. To change your settings please follow the links in the top right-hand corner.

Start of used for calculation:Date:8. March 2014Time:01:07:36

Duration for calculation:1 Day

Visibility of International Space Station ISS

Name: ISS Launched: 20 Nov 1998 Dimensions: 109 m x 73 m x 27.5 m Brightness: -2.0 mag (at 1000 km, 50% illuminated) -4.7 mag (at perigee, full illumination) USSPACECOM Nr: 25544 Internat. Designator: 1998-067A Orbit: 411.5 x 416 km, 92.8min Inclination: 51.6° Age Elements:  0.7 days

Satellite Menu

· Info ·  Orbit History/Zoom · Sighting Opportunities · Data & view of the Earth · Finder Chart · Ground Track Map

Saturday 8 March 2014 Time (24-hour clock)Object (Link)Event 4h57m23s ISS →Ground track →Star chart Appears       4h53m14s  -1.2mag  az:219.1° SW   h:5.4° Culmination   4h57m23s  -4.2mag  az:306.3° NW   h:77.3°  distance: 423.9km  height above Earth: 415.1km  elevation of Sun: -11° Disappears    5h02m47s   0.6mag  az: 34.6° NE   horizon

Export to Outlook/iCal   Print

This e-mail has been automatically generated by the Alert Manager of CalSky.com. This e-mail is sent to you according to your express request. In case you would like to discontinue this subscription, please click on the link 'Change Subscription' on the top right of this page. You receive alert emails only if the calculation produced some output. Generated images are stored for 48 hours. This material is ©1998-2014 by Arnold Barmettler (Imprint / Privacy policy / Disclaimers). Hard copies may be made for personal use only. No electronic copy may be located elsewhere for public access. All pages are dynamically generated. The usage of web copy tools is strictly prohibited. Commercial usage of the data only with written approval by the author. If you have any questions or comments, or plan to use results from CalSky in your publications or products, please contact us by e-mail. Credits. Dieser Service wird in der Schweiz entwickelt und betrieben; Sie können uns auch gerne auf Deutsch schreiben.

Unsubscribe/modify e-mail alerts