Results 1 to 7 of 7
Like Tree15Likes
  • 3 Post By astroval
  • 3 Post By not_Fritz_Argelander
  • 4 Post By MG1692
  • 2 Post By not_Fritz_Argelander
  • 1 Post By astroval
  • 1 Post By MG1692
  • 1 Post By astroval

Thread: Correlation between numbers of sporadic meteors and shower meteors?

  1. #1
    astroval's Avatar
    astroval is offline SUPER GIANT
    Points: 174,461, Level: 100
    Level completed: 0%, Points required for next Level: 0
    Overall activity: 0%
    Achievements:
    200+ Posts Achievement!First 1000 Experience PointsGot three Friends20+ Friends Achievement!365 Days+ Registered Achievement!
    Join Date
    Jul 2010
    Location
    NY, NY
    Posts
    1,347
    Points
    174,461
    Level
    100
    Thanks
    2,270
    Thanked 1,527x 741 Posts
    Blog Entries
    10

    Default Correlation between numbers of sporadic meteors and shower meteors?



    If there is some correlation between numbers of sporadic meteors and shower meteors?

    I saw couple Perseid meteor shower photos (with exposure about 30 sec) with 5-6 meteors and only one is from Perseid radiant. What is probability of it?

    If gravitation perturbation of meteor shower can create such effect and we can statistically detect it from observation?

    Or maybe we can see meteors from another showers at August 12?

    Or such photos are just artifacts?

    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.


    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    Telescope: Celestron NexStar 4SE, Coronado Solarmax II 60
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    Digital Cameras: Canon 60Da and 40D. CCD: NexImage
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    EPs: Celestron Eyepiece & Filter Accessory Kit - 1.25", T-Adapter with Barlow Universal, Other: Bahtinov focus mask
    Software: Registax 6, Stellarium, PhotoShop, Deep Sky Stacker, AMCap

    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    my backyard videos about astrophotography

    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    astrophotos
    http://astro-photos.blogspot.com/ - Astrophotography blog

  2. The Following 2 Users Say Thank You to astroval For This Useful Post:

    chas53 (08-16-2016),helicon64 (08-16-2016)

  3. #2
    not_Fritz_Argelander's Avatar
    not_Fritz_Argelander is online now HYPER GIANT
    Points: 182,069, Level: 100
    Level completed: 0%, Points required for next Level: 0
    Overall activity: 62.0%
    Achievements:
    365 Days+ Registered Achievement!2 Posts Achievement20 Posts Achievement!750 Days+ Registered Achievement!First 1000 Experience Points
    Awards:
    Thread Award
    Join Date
    Jul 2011
    Location
    US
    Posts
    22,021
    Points
    182,069
    Level
    100
    Thanks
    7,253
    Thanked 46,386x 14,947 Posts
    Blog Entries
    59

    Default Re: Correlation between numbers of sporadic meteors and shower meteors?

    I don't know. Interesting question though.
    astroval, chas53 and helicon64 like this.

  4. The Following 3 Users Say Thank You to not_Fritz_Argelander For This Useful Post:

    astroval (08-16-2016),chas53 (08-16-2016),helicon64 (08-17-2016)

  5. #3
    MG1692's Avatar
    MG1692 is offline HYPER GIANT
    Points: 12,974, Level: 78
    Level completed: 64%, Points required for next Level: 126
    Overall activity: 0%
    Achievements:
    2 Posts Achievement20 Posts Achievement!50 Posts Achievement!200+ Posts Achievement!400+ Posts Achievement
    Join Date
    Sep 2014
    Location
    Kansas
    Posts
    2,812
    Points
    12,974
    Level
    78
    Thanks
    26
    Thanked 1,280x 844 Posts

    Default Re: Correlation between numbers of sporadic meteors and shower meteors?

    Quote Originally Posted by astroval View Post
    If there is some correlation between numbers of sporadic meteors and shower meteors?
    Yes there is - depending on the time of year and the time of night

    Meteor FAQs : American Meteor Society
    Nexstar SE8 mount with Farstar C8 OTA (Caroline) Meade Series 5000 HD-60 25mm Paradigm Dual ED 25mm 18mm 15mm, Baader 21mm 17mm plus tunning rings, X-Cel LX 2X
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    , various other bits and bob.

  6. The Following 4 Users Say Thank You to MG1692 For This Useful Post:

    astroval (08-16-2016),chas53 (08-16-2016),helicon64 (08-17-2016),not_Fritz_Argelander (08-16-2016)

  7. #4
    not_Fritz_Argelander's Avatar
    not_Fritz_Argelander is online now HYPER GIANT
    Points: 182,069, Level: 100
    Level completed: 0%, Points required for next Level: 0
    Overall activity: 62.0%
    Achievements:
    365 Days+ Registered Achievement!2 Posts Achievement20 Posts Achievement!750 Days+ Registered Achievement!First 1000 Experience Points
    Awards:
    Thread Award
    Join Date
    Jul 2011
    Location
    US
    Posts
    22,021
    Points
    182,069
    Level
    100
    Thanks
    7,253
    Thanked 46,386x 14,947 Posts
    Blog Entries
    59

    Default Re: Correlation between numbers of sporadic meteors and shower meteors?

    Quote Originally Posted by MG1692 View Post
    Yes there is - depending on the time of year and the time of night

    Meteor FAQs : American Meteor Society
    This is interesting and somewhat surprising. The Earth is at perihelion in early January so the maximum and the minimum are at a quarter orbit displacement. Max and min are closer to equinoxes than solstices or perihelion/aphelion. I don't quite know what to make of it offhand. The only wild guess is that September has the Earth increasing in velocity inward bound to perihelion. March has Earth decreasing in velocity outbound to aphelion. Could it be that simple?
    astroval and helicon64 like this.

  8. The Following 2 Users Say Thank You to not_Fritz_Argelander For This Useful Post:

    astroval (08-16-2016),helicon64 (08-17-2016)

  9. #5
    astroval's Avatar
    astroval is offline SUPER GIANT
    Points: 174,461, Level: 100
    Level completed: 0%, Points required for next Level: 0
    Overall activity: 0%
    Achievements:
    200+ Posts Achievement!First 1000 Experience PointsGot three Friends20+ Friends Achievement!365 Days+ Registered Achievement!
    Join Date
    Jul 2010
    Location
    NY, NY
    Posts
    1,347
    Points
    174,461
    Level
    100
    Thanks
    2,270
    Thanked 1,527x 741 Posts
    Blog Entries
    10

    Default Re: Correlation between numbers of sporadic meteors and shower meteors?

    Quote Originally Posted by MG1692 View Post
    Yes there is - depending on the time of year and the time of night

    Meteor FAQs : American Meteor Society
    Thanks for link. It gives average rate number of sporadic meteors per hours

    Under good conditions, only about 2-4 sporadic meteors can be seen per hour in the early evening in March, with this rate increasing to about 4-8 sporadic meteors per hour by morning twilight. These rates will then slowly increase throughout the spring and summer. By the month of September, the evening sporadic rate will be up to about 4-8 meteors per hour, increasing up to about 8-16 sporadic meteors per hour by morning twilight.
    So it is about 0.1 meteors per 30 seconds (or 12 per hour). Probability to see 5 sporadic meteors on the photo with exposure time 30 sec is about (0.1)^5 = 0.00001 (or if use Poisson distribution even less - 0.0000001). Very rear event. When I see other photos of Perseid meteor shower this year (more 100 meteors per hour at peak time) and last years with different exposure time or even during for one night I see that number of sporadic meteors more or compare with Perseid meteors. Something strange.

    In the FAQ they mention that number of sporadic meteors depends only from season and night time, but not mention that correlation with number of shower meteors. Based on internet photos it looks should be very big effect. Something strange.
    helicon64 likes this.

    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.


    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    Telescope: Celestron NexStar 4SE, Coronado Solarmax II 60
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    Digital Cameras: Canon 60Da and 40D. CCD: NexImage
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    EPs: Celestron Eyepiece & Filter Accessory Kit - 1.25", T-Adapter with Barlow Universal, Other: Bahtinov focus mask
    Software: Registax 6, Stellarium, PhotoShop, Deep Sky Stacker, AMCap

    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    my backyard videos about astrophotography

    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    astrophotos
    http://astro-photos.blogspot.com/ - Astrophotography blog

  10. The Following User Says Thank You to astroval For This Useful Post:

    helicon64 (08-17-2016)

  11. #6
    MG1692's Avatar
    MG1692 is offline HYPER GIANT
    Points: 12,974, Level: 78
    Level completed: 64%, Points required for next Level: 126
    Overall activity: 0%
    Achievements:
    2 Posts Achievement20 Posts Achievement!50 Posts Achievement!200+ Posts Achievement!400+ Posts Achievement
    Join Date
    Sep 2014
    Location
    Kansas
    Posts
    2,812
    Points
    12,974
    Level
    78
    Thanks
    26
    Thanked 1,280x 844 Posts

    Default Re: Correlation between numbers of sporadic meteors and shower meteors?

    Quote Originally Posted by astroval View Post
    In the FAQ they mention that number of sporadic meteors depends only from season and night time, but not mention that correlation with number of shower meteors. Based on internet photos it looks should be very big effect. Something strange.
    If you could share a link to these photos I would be interested in taking a look
    astroval likes this.
    Nexstar SE8 mount with Farstar C8 OTA (Caroline) Meade Series 5000 HD-60 25mm Paradigm Dual ED 25mm 18mm 15mm, Baader 21mm 17mm plus tunning rings, X-Cel LX 2X
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    , various other bits and bob.

  12. The Following 2 Users Say Thank You to MG1692 For This Useful Post:

    astroval (08-17-2016),helicon64 (08-17-2016)

  13. #7
    astroval's Avatar
    astroval is offline SUPER GIANT
    Points: 174,461, Level: 100
    Level completed: 0%, Points required for next Level: 0
    Overall activity: 0%
    Achievements:
    200+ Posts Achievement!First 1000 Experience PointsGot three Friends20+ Friends Achievement!365 Days+ Registered Achievement!
    Join Date
    Jul 2010
    Location
    NY, NY
    Posts
    1,347
    Points
    174,461
    Level
    100
    Thanks
    2,270
    Thanked 1,527x 741 Posts
    Blog Entries
    10

    Default Re: Correlation between numbers of sporadic meteors and shower meteors?

    Quote Originally Posted by MG1692 View Post
    If you could share a link to these photos I would be interested in taking a look
    See for example some photos on Flickr group "Perseid Meteor Shower"

    https://www.flickr.com/groups/perseids/pool/

    Also started analyzed my photos which I made last weekend. See thread Iridium satellite?

    There are two photos looks like 2 meteors (difference in time between shots about 1 second, duration of each 2 min.)






    But after photo merge it looks like very strange.




    One satellite orbit is fit these images. Okean O Rocket - Pass Details

    So such photos may be result of problem - too many satellites and not so easy recognize from one image if this is meteor or not
    Last edited by astroval; 08-17-2016 at 03:29 AM.
    helicon64 likes this.

    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.


    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    Telescope: Celestron NexStar 4SE, Coronado Solarmax II 60
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    Digital Cameras: Canon 60Da and 40D. CCD: NexImage
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    EPs: Celestron Eyepiece & Filter Accessory Kit - 1.25", T-Adapter with Barlow Universal, Other: Bahtinov focus mask
    Software: Registax 6, Stellarium, PhotoShop, Deep Sky Stacker, AMCap

    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    my backyard videos about astrophotography

    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    astrophotos
    http://astro-photos.blogspot.com/ - Astrophotography blog

  14. The Following 2 Users Say Thank You to astroval For This Useful Post:

    chas53 (08-17-2016),helicon64 (08-17-2016)

 

 

Similar Threads

  1. I've been seeing some meteors
    By jazzin in forum Astronomy Beginners Forum
    Replies: 7
    Last Post: 07-30-2014, 09:05 PM
  2. Meteors
    By Twilight2929 in forum Astronomy Beginners Forum
    Replies: 9
    Last Post: 10-02-2013, 07:47 PM
  3. Meteors
    By kencrowder in forum Astrophysics Forum
    Replies: 1
    Last Post: 03-16-2012, 12:14 AM
  4. DAYTIME METEORS: The annual Arietid meteor shower peaks on Sunday
    By Sam Wormley in forum Amateur Astronomy Forum
    Replies: 0
    Last Post: 06-06-2009, 03:07 AM
  5. Meteors during eclipse ?
    By MalcolmP in forum UK Astronomy Forum
    Replies: 4
    Last Post: 10-29-2004, 01:44 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Powered by vBulletin® Version 4.2.0
Powered by vBulletin®
All times are GMT. The time now is 09:24 PM.