Comet C/2026A1 (MAS) replace and prospects.

Comet C/2026 A1 (MAPS) within the STEREO H1 imager on 30 March. It is the faint streak on the backside far proper.

Comet C/2026 A1 (MAPS) within the SOHO LASCO C3 instrument on the third of April. the “T” formed head is an imaging artifact.

C/2026 A1 (MAS) is a Kreutz family comet, certainly one of a bunch of associated comets that
move near the solar. Everybody was very excited that it would grow to be an especially vibrant (“great”) comet. Nevertheless, it’s brightness enhance stalled (everybody
gasped) then began up once more (everybody cheered), with what
an eruption plume. Because the comet neared the solar all eyes turned to photo voltaic monitoring satellites to comply with its progress (and doable demise).

C/2026 A1 as seen within the GOES-19 CCOR1 instrument.

The comet has handed intact
by the STEREO H1 imager (see above) and was within the area of view of the PUNCH (Polarimeter to Unify the Corona and Heliosphere) satellite, It had a magnitude of 6.5 and a tail extending greater than 3 levels. It has now handed into the sector of view of SOHO and the CCOR1 chronograph.

In each these imagers the comet continues to outlive and brighten. It’s now round magnitude 2-1, vibrant however a bit dimmer than the sungrazers C/2012 S1 (ISON) and C/2011 W3 (Lovejoy). and never dissimilar to C/2012 E2 (SWAN). SWAN disintegrated earlier than it reached the solar, ISON disintegrated on its move by the solar, Lovejoy survived photo voltaic passage then broke up shortly after.

At the moment the 2 most probably outcomes are
that the comet disintegrates earlier than it reaches the solar (like comet SWAN)
or it breaks up after perihelion and types a “headless” comet like
C/2011 (W3) Lovejoy. Within the latter case we may even see a vibrant tail stretching up from the horizon as twilight fades.

Nevertheless, astronomer Pedro Rincon reports that MAPS is exhibiting “extremely high cohesion” and is “shedding thin layers from its volatile surface.” This implies there could also be a chance that the comet will survive perihelion. Fingers crossed it’ll survive after perihelion on the 4th.

If it does survive there
is the chance the comet head might be round -3 to -4 magnitude, (about
as vibrant as Venus), however it’ll fade quickly and could also be tough to
distinguish towards the twilight by the point it’s above the horizon in
Australia.

Western sky on the night of Tuesday, April 7 as seen from Adelaide at
18:28 ACST (half-hour after sundown, click on to embiggen). If it hasn’t
disintegrated, Comet C/2026 A1 could also be seen low within the twilight.

C/2026
A1 perihelion is 4 April, the soonest we are able to see the comet head is
in all probability the sixth or seventh relying on how vibrant it seems to be. If
there’s a respectable tail we must always see it because the twilight fades, presumably as early on the fifth.

Look
to the west, vibrant Venus might be your information, the comet must be to
the west and a bit beneath. Because the twilight fades the comet and its tail
might grow to be extra seen. As the times progress the comet will get increased, however
it’ll even be dimming quickly.

Spotters chart for C/2026 A1 (MAPS) wanting west from Adelaide at civil twilight (half-hour after sundown) from the seventh. The circle is the sector of view of 10×50 binoculars. Click on to embiggen. Elsewhere in Australia will see the same view on the equal native time (half-hour after sundown).

Click on this hyperlink for a printable black and white spotters chart.

We may even see the tail within the late twilight, we could also be in a C/2011 (W3) Lovejoy scenario, the place a vibrant, lengthy headless tail was seen for a few days, or a C/2024 G3 Atlas scenario, the place a modest size however faint tail was seen within the late twilight for practically every week, relying on how dusty the tail is. Both can be good.