Live observations

RMOB Archives

Search Engine

RMOB Tools



Set Up


To receive news about this website, consider subscribing to our Newsletter.
147 Subscribers


   visitors online

Webmaster - Infos
rmobMeteor Shower Activity

Visual Meteor Showers CURRENT activity

Wednesday 24th of April 2019
Shower Activity Maximum Radiant V r ZHR
Date λ⊙ α δ km/s
Antihelion Source ANT Dec 10 - Sep 10 March-April303.0 4
Quadrantids QUA Dec 28 - Jan 12 Jan 03 283.16 230 +49 41 2.1 120
Lyrids LYR Apr 16 - Apr 25 Apr 22 32.32 271 +34 49 2.1 18
ν-Puppids PPU Apr 15 - Apr 28 Apr 23 33.5 110 -45 18 2.0 Var
η-Aquariids ETA Apr 19 - May 28 May 06 45.5 338 -01 66 2.4 55
Dec. Leonis Minorids DLM Dec 05 - Feb 04 Dec 20 268 161 +30 64 3.0 5

RADIO Meteor Showers CURRENT activity

Wednesday 24th of April 2019
Shower Activity Max λ⊙ Radiant Best observed Rate
Date 2000 α δ 50°N 35°S
Piscids (Apr)Apr 20 - Apr 26Apr 2232.59+1108h-13h08h-13hLow
ε-ArietidsApr 24 - May 27May 0948.744+2108h-15h10h-14hLow

Data sources : IMO


  • α, δ: Coordinates for a shower's radiant position, usually at maximum. α is right ascension, δ is declination. Radiants drift across the sky each day due to the Earth's own orbital motion around the Sun, and this must be allowed for using the details in Table 6 for nights away from the listed shower maxima.

  • r: The population index, a term computed from each shower's meteor magnitude distribution. r = 2.0-2.5 is brighter than average, while r above 3.0 is fainter than average.

  • λ⊙: Solar longitude, a precise measure of the Earth's position on its orbit which is not dependent on the vagaries of the calendar. All λ⊙ are given for the equinox 2000.0.

  • V: Atmospheric or apparent meteoric velocity, given in km/s. Velocities range from about 11 km/s (very slow) to 72 km/s (very fast). 40 km/s is roughly medium speed.

  • ZHR: Zenithal Hourly Rate, a calculated maximum number of meteors an ideal observer would see in perfectly clear skies with the shower radiant overhead. This figure is given in terms of meteors per hour. Where meteor activity persisted at a high level for less than an hour, or where observing circumstances were very poor, an estimated ZHR (EZHR) is used, which is less accurate than the normal ZHR.

  • TFC and IFC: Suggested telescopic and still-imaging (including photographic) field centres respectively. β is the observer's latitude ('<' means 'south of' and '>' means 'north of'). Pairs of telescopic fields must be observed, alternating about every half hour, so that the positions of radiants can be defined. The exact choice of TFC or IFC depends on the observer's location and the elevation of the radiant. Note that the TFCs are also useful centres to use for video camera fields as well.