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VdB 141 Ghost Nebula

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Posts Made By: Carlos E. Hernandez

June 1, 2003 12:26 PM Forum: Solar System Observing

Mars 5/26/2003

Posted By Carlos E. Hernandez
Angel,

An excellent image of Mars showing much detail over the Syrtis Major region. Several albedo featuress are visible including Mare Tyrrhenum, Syrtis Minor, Zea Lacus (center of Hellas), Hybaleus Extension, Hellespontus, and Sinus Sabaeus among others. We all look forward to your future images of the red planet.

Carlos

June 2, 2003 11:57 PM Forum: Solar System Observing

Mars 6.2.03

Posted By Carlos E. Hernandez
Sol,

A nice observation of Mars at approximately 90 degrees west longitude showing Solis Lacus, and the Tharsis region of Mars containing the volcanoes. It will be nicer as the planet increases in apparent size. We all look forward to your future observations.

Carlos

June 5, 2003 05:52 AM Forum: Solar System Observing

Digital Saturn using Registax

Posted By Carlos E. Hernandez
Barry,

Thank you for posting your excellent images of Saturn. The image obtained using the MK67 (an excellent planetary instrument) is sharper, but this may be due to image scale and seeing conditions. Please keep up the good work.

Carlos

June 18, 2003 06:57 PM Forum: Solar System Observing

Mars June 18, 2003

Posted By Carlos E. Hernandez
Bruce,

An excellent image of Mars showing a good amount of detail over the martian disk. Not many clouds visible at this time. I look forward to your future images of Mars as it grows in apparent size.

Carlos

June 24, 2003 05:25 AM Forum: Solar System Observing

Mars early this morning, "the claw"

Posted By Carlos E. Hernandez
Bruce,

A very nice image of Mars showing much detail. You have captured Sabaeus Sinus and Meridiani Sinus "The Claw" over the middle of the disk very well. The region you are referring to west of Hellas and north of the South Polar Cap (SPC) is Noachis which represents a very ancient (2-2.5 billion years old) cratered plain (Noachis Terra) which does darken at times as reported by observers of Mars in the past. When the area to the south (Mare Australe) and north (Pandorae Fretum) darken as well the region then appears very homogenous. At times this may be due to exposed martian volcanic bedrock as you mention.

The best of luck in future imaging of Mars.

Carlos

June 25, 2003 07:41 AM Forum: Solar System Observing

Mars 2003.6.24

Posted By Carlos E. Hernandez
Sol,

A spectacular observation of Mars! You have captured the regions between Syrtis Major and Meridiani Sinus (east-west) and Cydonia and Mare Australe (north-south) very well. Hellas appears bright as well towards the south-preceding (upper right) limb. The Sirius PC filter sounds like a very good one for Mars. I have been using a magenta (Wratten 30) filter for most of my observations of Mars, but the PC filter also exhibits detail visible through a green filter as well (e.g. bright frost, surface fog). I look forward to your future observations.

Carlos

June 27, 2003 07:22 AM Forum: Solar System Observing

Mars again 6.26.03

Posted By Carlos E. Hernandez
Sol,

Another excellent observation of Mars showing much detail. The orange-coral setting on your Sirius Variable Filter sounds the equivalent of a Salmon filter (as sold by Vernonscope). This filter produces images similar to that described by you above. I look forward to your future observations of Mars. I too made an observation of Mars at approximately the same time which has been posted. The best of luck.

Carlos

June 30, 2003 06:11 PM Forum: Solar System Observing

Mars 29-June-2003, Syrtis Major region

Posted By Carlos E. Hernandez
Bruce,

An excellent image of Mars showing pretty much the same albedo features descibed in my own observation on June 26, with the exception of the extensive limb haze. The appearance of Hellas does change over time due to several factors (e.g. inclination of the martian globe to Earth (De), presence of vapors (water) within the vast basin (and even dust at times), etc.). This region bears monitoring in the future as it may be the site of dust storm development.

Please keep up the excellent work.

Carlos

July 4, 2003 12:35 AM Forum: Solar System Observing

Mars 7.02.03

Posted By Carlos E. Hernandez
Sol,

An excellent observation of Mars showing much detail between Mare Cimmerium and Syrtis Major. The Mars filter is interesting and you bring out good points. Pease keep us updated on the filter in the future.

Carlos

July 4, 2003 12:22 PM Forum: Solar System Observing

7.04.03 Another Mars Sketch

Posted By Carlos E. Hernandez
Sol,

An excellent observation of Mars. Notice the light shading of Mare Tyrrhenum (to the left (following) limb) obscured by dust. Mare Cimmerium is also obscured in places. Dust is also noted over Electris and Eridania to the south below the South Polar Cap (SPC). We need to monitor these, and other possible, storms for any extension in the future. Please keep up the good work.

Carlos

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