This entry was posted on January 10, 2023
The new year begins with a new comet that may even be visible to the naked eye
Comet C/2022 E3 ZTF is coming close to the Sun for the first time in certainly 50,000 years, and on Thursday, January 12, it will come about as close to our central star as the Earth. It has been tracked by amateur and professional astronomers for several months now. It has now about 7th magnitude, so it is observable with common binoculars and even smaller telescopes. However, the currently three-degree-long plasma tail and a short dust tail fan shown in recent photos will not yet be seen visually with small optics. But that will change soon. The well-known comet photographer Michael Jäger sent us an impressive animation and...
This entry was posted on January 11, 2023
We have just had the Winter solstice (Summer solstice in the southern hemisphere) and, as 2022 draws to a close, we thought it would be interesting to let you know of some astronomy events to look forward to in the upcoming year ahead.
Equinoxes and Solstices
The Earth’s seasons change on four specific days each year. We have two solstices where the Sun appears to be at its lowest and highest points in the sky (December and June respectively) and two equinoxes where the length of day and night are similar (April and September).
As we have just had our winter solstice in the northern hemisphere, we thought we would start off with the equinox and solstice dates for 2023.
March 20 - Spring Equinox:...
This entry was posted on November 29, 2022
During the month of December our Moon passes close to the planets Jupiter, Uranus and Mars making such close encountersnic e photographic opportunities. However, the nights of 5th December and the morning on 8th December should be put into your astronomical diary as these dates mark the times when the Moon passes in front of the planets Uranus and Mars respectively. The moon during the course of its orbit around the Earth passes in front of many stars, mostly faint, so when the Moon obsures a planet is quite a rare event. When the Moon passes in front of a celestial object, this event is referred to as a Lunar occultation.
The information given below refers to the location of Munich and the times are...
This entry was posted on November 24, 2022
“The filters worked exceptionally well and we got terrific images post-impact. (See attached photo in Bessel R)
We couldn’t have done it without your help, and we are very grateful! Such an exciting and successful mission to be a part of (and lots of observing work).”
NASA Hazardous Asteroids research used large 100mm Baader Bessel filters to successfully image DART impact with the MRO 2.4-meter telescope
On the 11th of October 2022 after two weeks of analysis, NASA confirmed that the DART mission impact changed the Asteroid's motion in space. NASA's Double Asteroid Redirection Test, or DART for short, used the kinetic impact of a spacecraft to successfully alter an asteroids orbit. The mission involved crashing a spacecraft at 14,000 miles per hour into...
This entry was posted on November 18, 2022
The new QHY-5-III series cameras are a 2nd generation of planetary and guiding cameras. Compared to the first generation 5 III series, the new models have been significantly improved in terms of interfaces and hardware configuration. Among other things:
Larger internal image memory DDR 512MB
Improved front and end design
Compatibility with CS and C-mount lenses
USB 3.2 Type-C interface
Universal ST-4 guiding port
Control LED for status indication
New Sony sensors with extra high sensitivity
The 2nd generation QHY-5-III series planetary and guiding cameras are all equipped with 512 MB DDR3 internal image memory. This increases the safety of losing individual images at high frame rates.
This is a great advantage for solar, lunar and planetary photography, where large amounts of data often have...
This entry was posted on November 15, 2022
15% Discount on selected QHY cameras!
For the 2022 holiday season, QHY is once again offering some cameras at a particularly attractive price. You get 15% discount on each of the models below.
Offer valid until January 15th, 2023, or while stocks last.
QHY 600 M/C BSI Cooled Cameras (various versions available)
QHY 5-III-462C CMOS Camera (various versions available)
QHY600M – High-sensitive cooled CMOS Camera with Industry-Grade Full-Frame Sony IMX455 Sensor. Reduced available in the following versions:
QHY 600M PH, BSI Cooled Cameras
(#1931162 , € 5750)
QHY 600M PH with QHYCFW3-L filter wheel
(#1931179 , € 6100)
QHY 600M PH with QHYCFW3-L filter wheel and OAG-M
(#1931178 , € 6350)
QHY 600M PH Ultra Short, BSI Cooled Camera
(#1931168 , € 5750)
This entry was posted on October 21, 2022
After a couple of years break due to COVID, the International Astronomy Show (IAS) was held at the Stoneleigh Park exhibition ground near Coventry/Warwick on Friday 14th and Saturday 15th October 2022. Our UK representative Dr Lee Sproats attended the event to represent us, exhibiting a range of our own and 10Micron products.
As is customary, preparations for the event began a few weeks before the show. After travelling the few hours to reach the venue on the Thursday, the setup day, it was time to fill the booth with our display accessories and the 10Micron GM2000 HPS II mount with its hefty but extremely stable Centaurus II tripod. The 10Micron mount head, which "splits" into two parts, is stored and transported along with its...
This entry was posted on September 27, 2022
Every now and then, the moon moves in front of the sun and we experience a solar eclipse. In Europe, we will have to wait until August 12th, 2026 for the next total solar eclipse. It will be visible as a total solar eclipse e.g. from Spain, while the sun will remain only partially eclipsed from Germany.
Fortunately, we won't have to wait that long for the next partial solar eclipse: In the midday hours of October 25th this year, the moon will eclipse a third of the sun's disc. Observers in the north-east of the German-speaking region will have somewhat more of it than those in the south-west: on the island of Rügen, as much as 35% of the sun will be covered, in...
This entry was posted on September 28, 2022
Neue Baader Solar Continuum Filter – now with 7.5nm FWHM
Compared to the previous model with 10 nm half-band-width, the new Baader Solar Continuum Filter has a half-band-width of only 7.5 nm, which once again significantly increases the contrast. This replaces both the previous 10 nm Solar Continuum filter and, for the first time, the stacked 1¼" filter #2458392.
Baader 7.5 nm Solar Continuum Filter, CWL 540nm
A must for owners of achromatic refractors. This narrowband-filter cuts the spectral range where lens optics draw sharpest and contrastiest. The Baader Solar Continuum Filter lets you use the full power of your telescope.
Enhances contrast and reduces the effect of atmospheric turbulence (in combination with white light solar filters)
Enormous contrast gain in monochrome photography even on...
This entry was posted on September 6, 2022Last modified on September 28, 2022.
Sometimes it is worth giving things a second chance after many years. Panta rhei, as the saying goes…
The Baader Solar Continuum Filter is such an inconspicuous thing that I had largely ignored after a first quick test 15 years ago and which has now completely convinced me in its current incarnation with 7.5nm FWHM:
Baader 7.5nm Solar Continuum Filter (540nm)
Baader 7.5nm Solar Continuum Filter (540nm) (various versions available)
. This is due both to my observing experience and to product development and a larger variety of telescopes now in my reach.
Spoiler: Correctly used, it has got an incredible potential – not only to remove the colour aberrations of achromatic lens telescopes as expected, but to my great surprise also when imaging the...