Lars Lindhard

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Viewing 20 posts - 1 through 20 (of 75 total)
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  • Lars Lindhard
    Participant

    Thank you. My camera is a WAT-902H2 ULTIMATE.

    I got it used in a pile of equipment I bought some years ago. It came with a lot of cables, mostly with video plugs.
    I have never used it, but there is a manual/fact sheet so I guess I could make it work.

    (Though I don’t like this sentence from the set-up section: Turn on the power to the WAT, the monitor and other equipment. When a strong smell of burning is present, or smoke is visible, turn off the power…)

    Lars Lindhard
    Participant

    I observed from a carpark at Beacon Hill Hillfort just off the A34 South of Newbury. It was close to the mid-shadow line. Transparency was poor with thin cloud moving through but it was clear enough to see the pole star and the major constellations.

    Equipped with a Vixen Polarie and WAT-910HX + 135mm F2.8 lens attached, i was able to find the target by star hopping. To do this I compared SkyMapPro and the video display. The occultation itself was not seen live on the monitor. When i got home, I analysed the AVI recording. There is a small brief dip at the predicted time. No fade was recorded.

    It was more of challenge than i had expected, and i was pleased that the 50 mile drive from home resulted with a successful recording although no clear event.

    Hi Tim

    Fine result.

    I used to record asteroid occultations visually years ago but would like to try with a camera.

    I have a Wat-908 (I think) somewhere and guess that it can be used.

    Could you give some details of your setup and software?

    in reply to: Sunspots during recent TSE #622552
    Lars Lindhard
    Participant

    Having been lucky enough to have had an excellent view of the total solar eclipse on 8th April, I have been unable to find the “official numbers” of the two sunspots prominently visible that day, nor indeed any images showing them on an uneclipsed disc (labelled or otherwise). Can anyone help please?

    Here is SOHOs picture from 8. April and my SeeStar photo fra 8. April 12.03 DST (UT +2)

    in reply to: The monkey’s telescope – a mystery #622053
    Lars Lindhard
    Participant

    I think the author of the article is referring to another picture?

    in reply to: Variable Star Section Circular 199 now available #621906
    Lars Lindhard
    Participant

    Mike was faster here, sorry (and it is page 6 …)

    in reply to: Variable Star Section Circular 199 now available #621904
    Lars Lindhard
    Participant

    Thank you for this interesting issue. T CrB is on my list.

    However I think that the “X” on the picture on page 5 is misplaced.

    I beleive that the star is here (My white cross)

    Attachments:
    in reply to: JBAA Feb 2024 out now? #621441
    Lars Lindhard
    Participant

    Might it have been the thread on the BAA song? That mentions the February Journal from 1924 rather than 2024.

    https://britastro.org/forums/topic/baa-song

    Yes, unless the date there has been changed, I need new glasses, sorry.

    in reply to: BAA song #621349
    Lars Lindhard
    Participant

    Maybe you could make a CD to be sent out with the next journal?

    I am ready to participate in a crowd funding 🙂

    in reply to: BAA song #621338
    Lars Lindhard
    Participant

    Will this meeting be on Zoom or livestreamed to YouTube?

    Or better yet be recorded so everyone can enjoy the singing 🙂

    in reply to: Scrapping Honorary Membership ! #620785
    Lars Lindhard
    Participant

    In JBAA Dec. 2023, the president writes as a reason for canceling honorary memberships

    The BAA currently has most of its membership in the Senior (over 65s) category

    This is unfortunately clear when we see pictures from the various events. Apparently very few younger people participate.

    I myself have had the honor of being named an honorary member. Over the years, I have benefited greatly from the membership, and both I and the membership would survive, even if this distinction did not exist. And I would think that only very few would give up membership if they had no prospect of this honour.

    So a scrapping of honorary memberships is unlikely to reduce the membership significantly.

    However, this does not solve the age problem.

    The question is whether BAA has become an old-fashioned institution that fails to attract the new generations.

    The competition is of course tough today with all kinds of offers on-line, and I could fear that the situation is the same for the local clubs.

    Instead of deleting the associations from the membership list, perhaps BAA should create advantageous membership offers for club members, so that we could get more younger people into the organization that way.

    in reply to: 1429 Pemba lightcurve #620680
    Lars Lindhard
    Participant

    The weather will not permit observations/pictures from the next 180 hours, I’m afraid.

    in reply to: October JBAA (Missing) #619811
    Lars Lindhard
    Participant

    I received the October JBAA plus Handbook 23. October.

    in reply to: Elections to BAA Council #618779
    Lars Lindhard
    Participant

    I agree.

    These “Sovjet-type” elections with only one candidate are pointless and waste of money.

    in reply to: Large refractor and Herschel wedge #617909
    Lars Lindhard
    Participant

    Thank you for your advice. I will find a full-aperture filter for the objective.

    in reply to: Equipment available at PixelSkies #617862
    Lars Lindhard
    Participant

    Can you tell anything about the costs? There must be a monhtly rent or something? and what is your price for the equipment?

    in reply to: Supernova in M101 ! #617601
    Lars Lindhard
    Participant

    Any explanation for the drop in blue magnitude?

    in reply to: Supernova in M101 ! #617528
    Lars Lindhard
    Participant

    Very interesting thread.

    Could I make useful spectra of the SN with my StarAnalyzer 100?

    in reply to: Drawing planets #617190
    Lars Lindhard
    Participant

    Each of the planetary sections has templates on their websites on which you can draw the features and record other important details. The Saturn section has a series of templates depending on the angle of the rings (which you can look up in the Handbook). See: https://britastro.org/section_information_/saturn-uranus-and-neptune-section-overview/observing-programme/saturn-uranus-and-neptune-visual-report-forms

    Regarding phases,in the case of Venus the observed phase generally differs slightly from the calculated one, a phenomenon called the phase effect: https://britastro.org/2016/the-phases-of-venus. So the phase should be drawn in at the eyepiece. The time of dichotomy can be determined from your observations and compared to the predicted time.

    It seems that the links to Uranus and Neptune observing forms are dead.

    The negative Saturn tilt forms link to the positive forms, but I suppose they are identical?

    in reply to: Drawing planets #617188
    Lars Lindhard
    Participant

    Thank you, All, for good advice. I will study your suggestions.

    in reply to: Use of Non-Technical Units in astronomy #616717
    Lars Lindhard
    Participant
Viewing 20 posts - 1 through 20 (of 75 total)