2019 July 8 UT – (38628) Huya

Event Details

Huya is a binary TNO in a resonant orbit with Neptune. This event involves a bright star (mag 12.7) but the star will be on the southwest horizon and very low, especially for teams up north. For all event details (including sense-up) visit: RECON Event Detail Page for (38628) Huya


We wanted to provide the following observational reminders:

  1. Use the altitude (Star alt (deg)) and azimuth (Star az (deg)) of the target star listed for your location on the Event Detail Page when selecting your telescope location to avoid trees, buildings, and topography that might block the star. The target star will be low (between 17-22 degrees for most locations) on the southwest horizon. A fist held at arms length is roughly 10 degrees, so we’re only talking two fists! Due south is azimuth 180 and due west is azimuth 270. The star ranges from 237-247 across the network (so southwest).
  2. Be sure to use the focal reducer with your camera.  This is the 1-1/4″ adapter with glass lenses on either end used to connect the camera to the telescope that increases the field of view of our system. Do NOT use the adapter that does not have glass at either end, as this does not provide any focal reduction making it extremely difficult to find the starfield.
  3.  Be sure to set your IOTA-VTI on FULLSCREEN mode.
  4.  Remember to save your data files with 20190708_  prefix in a folder labeled 20190708.  See Observation Protocol below.

We remind observers with the QHY174M/C camera to follow the QHY174M/C camera setup.

Pre-Event Checklist

  1. Complete the RECON Campaign Signup Form for this event. Some participants have had trouble using Internet Explorer to sign up when there are more than one upcoming campaign.  We recommend using an alternate internet browser.  Submissions are updated hourly on our Signup Status Page.
  2. Plug in your power supply and RECON laptop to make sure both are fully charged well in advance of the event.
  3. Print this page as well as the Event Detail Page above and practice finding field prior to event.
  4. Be sure to practice on the target star field prior to the event!

Feel free to contact the RECON leadership team anytime by emailing tnorecon-org@mailman.boulder.swri.edu.

Observation Protocol

See our Full Campaign Observation Protocol Page for details on files to save:

  1. Position Video
  2. Event Video
  3. Sky Field Video
  4. Dark Field Video

You should configure VirtualDub to save files sequentially by using “Set Capture File” to save as C:/Users/RECON/Data/YYYYMMDD/YYYYMMDD_01. You should record the filenames and information about each file using the RECON Observation Logsheet.

Images of Star Field

July 8th event field taken by CU Boulder team at senseup x128
July 8th event field taken by CU Boulder team at senseup x16

Post-Event Details

Regardless of whether your team was able to collect data, we need you to Report Your Observations. This includes completing the Campaign Observation Report Form (below), saving an electronic version of your log sheet, and uploading both videos and observation log to SwRI in Boulder.

We need all teams to complete the RECON Campaign Observation Report Form within one week of the event. To view reports from teams from throughout the network, check out the Event Reporting Status Page.